Last data update: Dec 02, 2024. (Total: 48272 publications since 2009)
Records 1-21 (of 21 Records) |
Query Trace: DiOrio C[original query] |
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Ending the HIV epidemic: Contributions resulting from syphilis partner services
DiOrio D , Collins D , Hanley S . Sex Transm Dis 2020 47 (8) 511-515 BACKGROUND: There is a high level of coinfection with HIV among persons diagnosed with syphilis in the United States. Public health workers at state and local health departments help inform exposed partners to STD/HIV infections to facilitate early testing and treatment (partner services). The federal initiative, Ending the HIV Epidemic (EHE), identifies four key strategies: diagnose, treat, prevent, and respond. This study describes the contributions of syphilis partner services to the EHE strategies in a county prioritized by the EHE plan. METHODS: A retrospective record review of reported early syphilis cases (less than one year's duration) between 2016 and 2018 in the Indianapolis area was conducted to determine the extent of new HIV diagnoses, retention in HIV care, and other evidence-based HIV prevention interventions occurring after provision of syphilis partner services. RESULTS: A total of 752 partners to early syphilis were attempted to be notified of exposure. 1,457 case patients and partners received STD/HIV prevention counseling; 400 partners received STD treatment; 352 partners learned their HIV status; and 22 received new HIV diagnoses, with 68% retained in medical care and 60% virally suppressed. Two-thirds of partner services were completed within 21 days. New HIV positivity among partners to HIV-negative syphilis case patients was 3.5%, and 14% among HIV-positive syphilis case patients. CONCLUSIONS: Partner services for syphilis was an effective method of addressing the EHE strategies, resulting in persons at risk tested, STD treatment provided, PrEP referrals, and new HIV cases identified, leading to retention in medical care and viral suppression. |
Impact of public health responses during a measles outbreak in an Amish community in Ohio: modelling the dynamics of transmission
Gastanaduy PA , Funk S , Paul P , Tatham L , Fisher N , Budd J , Fowler B , de Fijter S , DiOrio M , Wallace GS , Grenfell B . Am J Epidemiol 2018 187 (9) 2002-2010 We quantified measles transmissibility during a measles outbreak in Ohio in 2014 to evaluate the impact of public health responses. Case incidence and the serial interval (time between symptom onset in primary and secondary cases) were used to assess trends in the effective reproduction number R (average number of secondary cases generated per case). A mathematical model was parameterized by early R values to determine outbreak size and duration if containment measures had not been initiated, and the impact of vaccination. As containment started, we found a fourfold decline in R (~4 to 1) over 2 weeks, and maintenance of R < 1 as control measures continued. Under a conservative scenario, the model estimated 8,472 cases (90% confidence interval [CI]: 8,447, 8,489) over 195 days (90% CI: 179, 223) without control efforts, and 715 cases (90% CI: 103, 1,338) over 128 days (90% CI: 117, 139) when including vaccination; 7,757 fewer cases (90% CI: 7,130, 8,365) and 67 fewer outbreak days (90% CI: 48, 98) were attributed to vaccination. Vaccination may not account entirely for transmission reductions, suggesting changes in community behavior (social distancing) and other control efforts (isolation, quarantining) are important. Our findings highlight the benefits of measles outbreak response and of understanding behavior change dynamics. |
Social vulnerability in congenital syphilis case mothers: Qualitative assessment of cases in Indiana, 2014-2016
DiOrio D , Kroeger K , Ross A . Sex Transm Dis 2018 45 (7) 447-451 BACKGROUND: Congenital syphilis occurs when a pregnant woman with syphilis is not diagnosed or treated and the infection is passed in utero, causing severe infant morbidity and mortality. Congenital syphilis is easily prevented if women receive timely and adequate prenatal care. Cases of congenital syphilis are considered indicators of problems in the safety net. However, maternal social and behavioral factors can impede women's care, even when providers follow guidelines. METHODS: We reviewed case interviews and maternal records for 23 congenital syphilis cases reported to CDC from Indiana between 2014 and 2016. We used qualitative methods to analyze narrative notes from maternal interviews to learn more about factors that potentially contributed to CS cases. RESULTS: All providers followed CDC and state recommendations for screening and treatment of pregnant women with syphilis. Twenty-one of 23 women had health insurance. The number of prenatal care visits women had was suboptimal; more than one third of women had no prenatal care. Nearly one third of women's only risk factor was sex with a primary male sex partner. The majority of women suffered social vulnerabilities, including homelessness, substance abuse, and incarceration. CONCLUSIONS: Despite provider adherence to guidelines and health insurance availability, some pregnant women with syphilis are unlikely to receive timely diagnosis and treatment. Pregnant women at high risk for syphilis may need additional social and material support to prevent a CS case. Additional efforts are needed to reach the male partners of vulnerable females with syphilis. |
Investigation of acute flaccid paralysis reported with La Crosse virus infection, Ohio, USA, 2008-2014
Hennessey MJ , Pastula DM , Machesky K , Fischer M , Lindsey NP , DiOrio M , Staples JE , de Fijter S . Emerg Infect Dis 2017 23 (12) 2075-2077 Infection with La Crosse virus can cause meningoencephalitis, but it is not known to cause acute flaccid paralysis (AFP). During 2008-2014, nine confirmed or probable La Crosse virus disease cases with possible AFP were reported in Ohio, USA. After an epidemiologic and clinical investigation, we determined no patients truly had AFP. |
Identifying and addressing the daily needs of contacts of an Ebola patient during investigation, monitoring, and movement restriction, Ohio
McCarty CL , Karwowski MP , Basler C , Erme M , Kippes C , Quinn K , de Fijter S , DiOrio C , Braden C , Knust B , Santibañez S . Public Health Rep 2016 131 (5) 661-665 An essential element of Ebola control involves monitoring and movement restrictions for people who come into contact with an Ebola patient while the patient is infectious. Although procedures can vary by local regulations, monitoring and movement restrictions for Ebola contacts normally last for 21 days after the last exposure to the infectious patient. Contact monitoring and movement restrictions allow for early identification of disease to prevent further transmission.1 However, movement restrictions also limit a contact’s ability to meet some of his or her own daily living needs. Ensuring that measures and processes are in place to provide for these needs is an important component of implementing movement restrictions. Stigmatization of contacts because of community fears creates an additional need for supports.2 A previous report of a related Ebola investigation in Texas described the needs of Ebola contacts, including basic needs for food, financial assistance, and education. In that investigation, health officials found that meeting the needs of Ebola contacts was essential to successful contact monitoring.3 | Providing for the daily needs of people whose movement is restricted during an outbreak response is not new to public health. This need was noted during the typhus and cholera epidemics in New York City in 18924 and during the severe acute respiratory syndrome epidemic in Taiwan and Canada in 2013, where affected individuals experienced uncomfortable surroundings, discrimination, uncertainty, and a need for family support.5,6 We discuss the importance of preparing for such daily needs and how the Ebola experience in Ohio adds to the Texas report to inform future situations in which movement restrictions are needed. |
Ocular syphilis - eight jurisdictions, United States, 2014-2015
Oliver SE , Aubin M , Atwell L , Matthias J , Cope A , Mobley V , Goode A , Minnerly S , Stoltey J , Bauer HM , Hennessy RR , DiOrio D , Fanfair RN , Peterman TA , Markowitz L . MMWR Morb Mortal Wkly Rep 2016 65 (43) 1185-1188 Ocular syphilis, a manifestation of Treponema pallidum infection, can cause a variety of ocular signs and symptoms, including eye redness, blurry vision, and vision loss. Although syphilis is nationally notifiable, ocular manifestations are not reportable to CDC. Syphilis rates have increased in the United States since 2000. After ocular syphilis clusters were reported in early 2015, CDC issued a clinical advisory in April 2015 and published a description of the cases in October 2015. Because of concerns about an increase in ocular syphilis, eight jurisdictions (California, excluding Los Angeles and San Francisco, Florida, Indiana, Maryland, New York City, North Carolina, Texas, and Washington) reviewed syphilis surveillance and case investigation data from 2014, 2015, or both to ascertain syphilis cases with ocular manifestations. A total of 388 suspected ocular syphilis cases were identified, 157 in 2014 and 231 in 2015. Overall, among total syphilis surveillance cases in the jurisdictions evaluated, 0.53% in 2014 and 0.65% in 2015 indicated ocular symptoms. Five jurisdictions described an increase in suspected ocular syphilis cases in 2014 and 2015. The predominance of cases in men (93%), proportion of those who are men who have sex with men (MSM), and percentage who are HIV-positive (51%) are consistent with the epidemiology of syphilis in the United States. It is important for clinicians to be aware of potential visual complications related to syphilis infections. Prompt identification of potential ocular syphilis, ophthalmologic evaluation, and appropriate treatment are critical to prevent or manage visual symptoms and sequelae of ocular syphilis. |
Outbreak of influenza a(H3N2) variant virus infections among persons attending agricultural fairs housing infected swine - Michigan and Ohio, July-August 2016
Schicker RS , Rossow J , Eckel S , Fisher N , Bidol S , Tatham L , Matthews-Greer J , Sohner K , Bowman AS , Avrill J , Forshey T , Blanton L , Davis CT , Schiltz J , Skorupski S , Berman L , Jang Y , Bresee JS , Lindstrom S , Trock SC , Wentworth D , Fry AM , de Fijter S , Signs K , DiOrio M , Olsen SJ , Biggerstaff M . MMWR Morb Mortal Wkly Rep 2016 65 (42) 1157-1160 On August 3, 2016, the Ohio Department of Health Laboratory reported to CDC that a respiratory specimen collected on July 28 from a male aged 13 years who attended an agricultural fair in Ohio during July 22-29, 2016, and subsequently developed a respiratory illness, tested positive by real-time reverse transcription-polymerase chain reaction (rRT-PCR) for influenza A(H3N2) variant* (H3N2v). The respiratory specimen was collected as part of routine influenza surveillance activities. The next day, CDC was notified of a child aged 9 years who was a swine exhibitor at an agricultural fair in Michigan who became ill on July 29, 2016, and tested positive for H3N2v virus at the Michigan Department of Health and Human Services Laboratory. Investigations by Michigan and Ohio health authorities identified 18 human infections linked to swine exhibits at agricultural fairs. To minimize transmission of influenza viruses from infected swine to visitors, agricultural fair organizers should consider prevention measures such as shortening the time swine are on the fairgrounds, isolating ill swine, maintaining a veterinarian on call, providing handwashing stations, and prohibiting food and beverages in animal barns. Persons at high risk for influenza-associated complications should be discouraged from entering swine barns. |
A measles outbreak in an underimmunized Amish community in Ohio
Gastanaduy PA , Budd J , Fisher N , Redd SB , Fletcher J , Miller J , McFadden DJ 3rd , Rota J , Rota PA , Hickman C , Fowler B , Tatham L , Wallace GS , de Fijter S , Parker Fiebelkorn A , DiOrio M . N Engl J Med 2016 375 (14) 1343-1354 Background Although measles was eliminated in the United States in 2000, importations of the virus continue to cause outbreaks. We describe the epidemiologic features of an outbreak of measles that originated from two unvaccinated Amish men in whom measles was incubating at the time of their return to the United States from the Philippines and explore the effect of public health responses on limiting the spread of measles. Methods We performed descriptive analyses of data on demographic characteristics, clinical and laboratory evaluations, and vaccination coverage. Results From March 24, 2014, through July 23, 2014, a total of 383 outbreak-related cases of measles were reported in nine counties in Ohio. The median age of case patients was 15 years (range, <1 to 53); a total of 178 of the case patients (46%) were female, and 340 (89%) were unvaccinated. Transmission took place primarily within households (68% of cases). The virus strain was genotype D9, which was circulating in the Philippines at the time of the reporting period. Measles-mumps-rubella (MMR) vaccination coverage with at least a single dose was estimated to be 14% in affected Amish households and more than 88% in the general (non-Amish) Ohio community. Containment efforts included isolation of case patients, quarantine of susceptible persons, and administration of the MMR vaccine to more than 10,000 persons. The spread of measles was limited almost exclusively to the Amish community (accounting for 99% of case patients) and affected only approximately 1% of the estimated 32,630 Amish persons in the settlement. Conclusions The key epidemiologic features of a measles outbreak in the Amish community in Ohio were transmission primarily within households, the small proportion of Amish people affected, and the large number of people in the Amish community who sought vaccination. As a result of targeted containment efforts, and high baseline coverage in the general community, there was limited spread beyond the Amish community. (Funded by the Ohio Department of Health and the Centers for Disease Control and Prevention.). |
Community needs assessment after microcystin toxin contamination of a municipal water supply - Lucas County, Ohio, September 2014
McCarty CL , Nelson L , Eitniear S , Zgodzinski E , Zabala A , Billing L , DiOrio M . MMWR Morb Mortal Wkly Rep 2016 65 (35) 925-929 On August 1, 2014, routine testing at the Collins Park Water Treatment Plant in Lucas County, Ohio, revealed microcystin toxin levels in drinking water had reached 3.19 mug/L, surpassing the Ohio Environmental Protection Agency (EPA) drinking water advisory threshold of 1.0 mug/L. Microcystin is a hepatoxin released by cyanobacteria in certain harmful algal blooms. Exposure to microcystin has been associated with gastrointestinal and hepatic illness in both humans and animals (1-3). On August 2, a do-not-drink advisory was issued, warning community members not to drink, boil, or use the water for cooking or brushing teeth. Public health officials used traditional and social media outlets to disseminate public health messages to affected communities. On August 4, 2014, the advisory was lifted after multiple water samples confirmed microcystin toxin levels had dropped below the advisory threshold. To assess communication strategies, water exposure, and household needs, the Ohio Department of Health (ODH) and Toledo-Lucas County Health Department (TLCHD) conducted a Community Assessment for Public Health Emergency Response (CASPER) in Lucas County. Most households (88.1%) reported hearing about the advisory the morning it was issued, but 11% reported drinking and 21% reported brushing teeth with municipal water during the advisory. Household members reported physical (16%) and mental (10%) health concerns that they believed were related to the advisory and activity disruptions including temporarily staying outside of the home (6%) during the advisory and continued use of alternative water sources after the advisory was lifted (82%). During a do-not-drink advisory, governmental agencies and community partners need to engage in joint prevention and response efforts to decrease water exposure and prevent activity disruptions. |
Increases in fentanyl-related overdose deaths - Florida and Ohio, 2013-2015
Peterson AB , Gladden RM , Delcher C , Spies E , Garcia-Williams A , Wang Y , Halpin J , Zibbell J , McCarty CL , DeFiore-Hyrmer J , DiOrio M , Goldberger BA . MMWR Morb Mortal Wkly Rep 2016 65 (33) 844-849 In March and October 2015, the Drug Enforcement Administration (DEA) and CDC issued nationwide alerts identifying fentanyl, particularly illicitly manufactured fentanyl (IMF), as a threat to public health and safety (1,2). IMF is pharmacologically similar to pharmaceutical fentanyl (PF), but is unlawfully produced in clandestine laboratories, obtained via illicit drug markets, and includes fentanyl analogs. Fentanyl is a synthetic opioid 50-100 times more potent than morphine and approved for the management of surgical/postoperative pain, severe chronic pain, and breakthrough cancer pain.* DEA's National Forensic Laboratory Information System (NFLIS) collects drug identification results from drug cases analyzed by federal, state, and local forensic laboratories throughout the United States.dagger In 2014, 80% of fentanyl submissions (i.e., drug products obtained by law enforcement that tested positive for fentanyl) in NFLIS were identified from 10 states, including Florida and Ohio (2), and seven of these 10 states reported sharp increases in fentanyl-related overdose deaths (fentanyl deaths) (3). This report presents findings of increased fentanyl deaths during 2013-2015 from investigations conducted by the University of Florida and the Ohio Department of Public Health, in collaboration with CDC. Analyses examined the association between trends in fentanyl-related law enforcement submissions and fentanyl deaths and describes groups at risk for fentanyl death using medical examiner and coroner reports. The marked increases in fentanyl death in Florida and Ohio during 2013-2015 were closely associated with parallel increases in fentanyl submissions, with the largest impact on persons who use heroin, consistent with reports that IMF is commonly mixed with or sold as heroin (1,4). In Ohio, circumstances associated with fentanyl deaths included a current diagnosed mental health disorder section sign and recent release from an institution such as a jail, rehabilitation facility, or hospital. |
Notes from the field: Increase in Neisseria meningitidis-associated urethritis among men at two sentinel clinics - Columbus, Ohio, and Oakland County, Michigan, 2015
Bazan JA , Peterson AS , Kirkcaldy RD , Briere EC , Maierhofer C , Turner AN , Licon DB , Parker N , Dennison A , Ervin M , Johnson L , Weberman B , Hackert P , Wang X , Kretz CB , Abrams AJ , Trees DL , Del Rio C , Stephens DS , Tzeng YL , DiOrio M , Roberts MW . MMWR Morb Mortal Wkly Rep 2016 65 (21) 550-2 Neisseria meningitidis (Nm) urogenital infections, although less common than infections caused by Neisseria gonorrhoeae (Ng), have been associated with urethritis, cervicitis, proctitis, and pelvic inflammatory disease. Nm can appear similar to Ng on Gram stain analysis (gram-negative intracellular diplococci). Because Nm colonizes the nasopharynx, men who receive oral sex (fellatio) can acquire urethral Nm infections. This report describes an increase in Nm-associated urethritis in men attending sexual health clinics in Columbus, Ohio, and Oakland County, Michigan. |
Notes from the field: large outbreak of botulism associated with a church potluck meal - Ohio, 2015
McCarty CL , Angelo K , Beer KD , Cibulskas-White K , Quinn K , Fijter S , Bokanyi R , Germain ES , Baransi K , Barlow K , Shafer G , Hanna L , Spindler K , Walz E , DiOrio M , Jackson BR , Luquez C , Mahon BE , Basler C , Curran K , Matanock A , Walsh K , Slifka KJ , Rao AK . MMWR Morb Mortal Wkly Rep 2015 64 (29) 802-803 On April 21, 2015, the Fairfield Medical Center (FMC) and Fairfield Department of Health contacted the Ohio Department of Health (ODH) about a patient suspected of having botulism in Fairfield County, Ohio. Botulism is a severe, potentially fatal neuroparalytic illness.* A single case is a public health emergency, because it can signal an outbreak. Within 2 hours of health department notification, four more patients with similar clinical features arrived at FMC's emergency department. Later that afternoon, one patient died of respiratory failure shortly after arriving at the emergency department. All affected persons had eaten at the same widely attended church potluck meal on April 19. CDC's Strategic National Stockpile sent 50 doses of botulinum antitoxin to Ohio. FMC, the Fairfield Department of Health, ODH, and CDC rapidly responded to confirm the diagnosis, identify and treat additional patients, and determine the source. |
Investigation of an outbreak of variant influenza A (H3N2) virus associated with an agricultural fair - Ohio, August 2012
Greenbaum A , Quinn C , Bailer J , Su S , Havers F , Durand LO , Jiang V , Page S , Budd J , Shaw M , Biggerstaff M , de Fijter S , Smith K , Reed C , Epperson S , Brammer L , Feltz D , Sohner K , Ford J , Jain S , Gargiullo P , Weiss E , Burg P , DiOrio M , Fowler B , Finelli L , Jhung MA . J Infect Dis 2015 212 (10) 1592-9 BACKGROUND: In 2012, one third of cases in a multi-state outbreak of variant influenza A(H3N2) virus [(H3N2)v] occurred in Ohio. We conducted an investigation of (H3N2)v cases associated with agricultural Fair A in Ohio. METHODS: We surveyed Fair A swine exhibitors and their household members. Confirmed cases had influenza-like illness (ILI) and a positive laboratory test for (H3N2)v virus and probable cases had ILI. We calculated attack rates. We determined risk factors for infection using multivariable log-binomial regression. RESULTS: We identified a total of 20 confirmed and 94 probable cases associated with Fair A. Among 114 cases, the median age was 10 years, there were no hospitalizations or deaths, and 85% had swine exposure. In the exhibitor household cohort of 359 persons (83 households), we identified 6 confirmed (2%) and 40 probable (11%) cases. Age <10 years was a significant risk factor (p<0.01) for illness. One instance of likely human-to-human transmission was identified. CONCLUSIONS: In this (H3N2)v outbreak, no evidence of sustained human-to-human (H3N2)v transmission was found. Our risk factor analysis contributed to the development of recommendations that those at increased risk of influenza complications, including children aged <5 years, avoid swine barns at fairs during the 2012 fair season. |
Response to importation of a case of Ebola virus disease - Ohio, October 2014
McCarty CL , Basler C , Karwowski M , Erme M , Nixon G , Kippes C , Allan T , Parrilla T , DiOrio M , Fijter Sd , Stone ND , Yost DA , Lippold SA , Regan JJ , Honein MA , Knust B , Braden C . MMWR Morb Mortal Wkly Rep 2014 63 (46) 1089-91 On September 30, 2014, the Texas Department of State Health Services reported a case of Ebola virus disease (Ebola) diagnosed in Dallas, Texas, and confirmed by CDC, the first case of Ebola diagnosed in the United States. The patient (patient 1) had traveled from Liberia, a country which, along with Sierra Leone and Guinea, is currently experiencing the largest recorded Ebola outbreak. A nurse (patient 2) who provided hospital bedside care to patient 1 in Texas visited an emergency department (ED) with fever and was diagnosed with laboratory-confirmed Ebola on October 11, and a second nurse (patient 3) who also provided hospital bedside care visited an ED with fever and rash on October 14 and was diagnosed with laboratory-confirmed Ebola on October 15. Patient 3 visited Ohio during October 10-13, traveling by commercial airline between Dallas, Texas, and Cleveland, Ohio. Based on the medical history and clinical and laboratory findings on October 14, the date of illness onset was uncertain; therefore, CDC, in collaboration with state and local partners, included the period October 10-13 as being part of the potentially infectious period, out of an abundance of caution to ensure all potential contacts were monitored. On October 15, the Ohio Department of Health requested CDC assistance to identify and monitor contacts of patient 3, assess the risk for disease transmission, provide infection control recommendations, and assess and guide regional health care system preparedness. The description of this contact investigation and hospital assessment is provided to help other states in planning for similar events. |
Fatal Burkholderia pseudomallei infection initially reported as a Bacillus species, Ohio, 2013
Doker TJ , Quinn CL , Salehi ED , Sherwood JJ , Benoit TJ , Elrod MG , Gee JE , Shadomy SV , Bower WA , Hoffmaster AR , Walke HT , Blaney DD , DiOrio MS . Am J Trop Med Hyg 2014 91 (4) 743-6 A fatal case of melioidosis was diagnosed in Ohio one month after culture results were initially reported as a Bacillus species. To identify a source of infection and assess risk in patient contacts, we abstracted patient charts; interviewed physicians and contacts; genetically characterized the isolate; performed a Burkholderia pseudomallei antibody indirect hemagglutination assay on household contacts and pets to assess seropositivity; and collected household plant, soil, liquid, and insect samples for culturing and real-time polymerase chain reaction testing. Family members and pets tested were seronegative for B. pseudomallei. Environmental samples were negative by real-time polymerase chain reaction and culture. Although the patient never traveled internationally, the isolate genotype was consistent with an isolated that originated in Southeast Asia. This investigation identified the fifth reported locally acquired non-laboratory melioidosis case in the contiguous United States. Physicians and laboratories should be aware of this potentially emerging disease and refer positive cultures to a Laboratory Response Network laboratory. |
Algal bloom-associated disease outbreaks among users of freshwater lakes - United States, 2009-2010
Hilborn ED , Roberts VA , Backer L , Deconno E , Egan JS , Hyde JB , Nicholas DC , Wiegert EJ , Billing LM , Diorio M , Mohr MC , Hardy JF , Wade TJ , Yoder JS , Hlavsa MC . MMWR Morb Mortal Wkly Rep 2014 63 (1) 11-5 Harmful algal blooms (HABs) are excessive accumulations of microscopic photosynthesizing aquatic organisms (phytoplankton) that produce biotoxins or otherwise adversely affect humans, animals, and ecosystems. HABs occur sporadically and often produce a visible algal scum on the water. This report summarizes human health data and water sampling results voluntarily reported to CDC's Waterborne Disease and Outbreak Surveillance System (WBDOSS) via the National Outbreak Reporting System (NORS) and the Harmful Algal Bloom-Related Illness Surveillance System (HABISS)* for the years 2009-2010. For 2009-2010, 11 waterborne disease outbreaks associated with algal blooms were reported; these HABs all occurred in freshwater lakes. The outbreaks occurred in three states and affected at least 61 persons. Health effects included dermatologic, gastrointestinal, respiratory, and neurologic signs and symptoms. These 11 HAB-associated outbreaks represented 46% of the 24 outbreaks associated with untreated recreational water reported for 2009-2010, and 79% of the 14 freshwater HAB-associated outbreaks that have been reported to CDC since 1978. Clinicians should be aware of the potential for HAB-associated illness among patients with a history of exposure to freshwater. |
Outbreak of variant influenza A(H3N2) virus in the United States
Jhung MA , Epperson S , Biggerstaff M , Allen D , Balish A , Barnes N , Beaudoin A , Berman L , Bidol S , Blanton L , Blythe D , Brammer L , D'Mello T , Danila R , Davis W , de Fijter S , Diorio M , Durand LO , Emery S , Fowler B , Garten R , Grant Y , Greenbaum A , Gubareva L , Havers F , Haupt T , House J , Ibrahim S , Jiang V , Jain S , Jernigan D , Kazmierczak J , Klimov A , Lindstrom S , Longenberger A , Lucas P , Lynfield R , McMorrow M , Moll M , Morin C , Ostroff S , Page SL , Park SY , Peters S , Quinn C , Reed C , Richards S , Scheftel J , Simwale O , Shu B , Soyemi K , Stauffer J , Steffens C , Su S , Torso L , Uyeki TM , Vetter S , Villanueva J , Wong KK , Shaw M , Bresee JS , Cox N , Finelli L . Clin Infect Dis 2013 57 (12) 1703-12 BACKGROUND: Variant influenza virus infections are rare but may have pandemic potential if person-to-person transmission is efficient. We describe the epidemiology of a multistate outbreak of an influenza A(H3N2) variant virus (H3N2v) first identified in 2011. METHODS: We identified laboratory-confirmed cases of H3N2v and used a standard case report form to characterize illness and exposures. We considered illness to result from person-to-person H3N2v transmission if swine contact was not identified within 4 days prior to illness onset. RESULTS: From 9 July to 7 September 2012, we identified 306 cases of H3N2v in 10 states. The median age of all patients was 7 years. Commonly reported signs and symptoms included fever (98%), cough (85%), and fatigue (83%). Sixteen patients (5.2%) were hospitalized, and 1 fatal case was identified. The majority of those infected reported agricultural fair attendance (93%) and/or contact with swine (95%) prior to illness. We identified 15 cases of possible person-to-person transmission of H3N2v. Viruses recovered from patients were 93%-100% identical and similar to viruses recovered from previous cases of H3N2v. All H3N2v viruses examined were susceptible to oseltamivir and zanamivir and resistant to adamantane antiviral medications. CONCLUSIONS: In a large outbreak of variant influenza, the majority of infected persons reported exposures, suggesting that swine contact at an agricultural fair was a risk for H3N2v infection. We identified limited person-to-person H3N2v virus transmission, but found no evidence of efficient or sustained person-to-person transmission. Fair managers and attendees should be aware of the risk of swine-to-human transmission of influenza viruses in these settings. |
Infection control assessment after an influenza outbreak in a residential care facility for children and young adults with neurologic and neurodevelopmental conditions
Azofeifa A , Yeung LF , Peacock G , Moore CA , Rodgers L , Diorio M , Page SL , Fowler B , Stone ND , Finelli L , Jhung MA . Infect Control Hosp Epidemiol 2013 34 (7) 717-22 OBJECTIVE: To assess the knowledge, attitudes, and practices of infection control among staff in a residential care facility for children and young adults with neurologic and neurodevelopmental conditions. DESIGN: Self-administered survey. SETTING: Residential care facility (facility A). PARTICIPANTS: Facility A staff ([Formula: see text]). METHODS: We distributed a survey to staff at facility A. We classified staff with direct care responsibilities as clinical (ie, physicians, nurses, and therapists) or nonclinical (ie, habilitation assistants, volunteers, and teachers) and used chi(2) tests to measure differences between staff agreement to questions. RESULTS: Of 248 surveys distributed, 200 (81%) were completed; median respondent age was 36 years; 85% were female; and 151 were direct care staff (50 clinical, 101 nonclinical). Among direct care staff respondents, 86% agreed they could identify residents with respiratory symptoms, 70% stayed home from work when ill with respiratory infection, 64% agreed that facility administration encouraged them to stay home when ill with respiratory infection, and 72% reported that ill residents with respiratory infections were separated from well residents. Clinical and nonclinical staff differed in agreement about using waterless hand gel as a substitute for handwashing (96% vs 78%; [Formula: see text]) and whether handwashing was done after touching residents (92% vs 75%; [Formula: see text]). CONCLUSIONS: Respondents' knowledge, attitudes, and practices regarding infection control could be improved, especially among nonclinical staff. Facilities caring for children and young adults with neurologic and neurodevelopmental conditions should encourage adherence to infection control best practices among all staff having direct contact with residents. |
Prolonged university outbreak of meningococcal disease associated with a serogroup B strain rarely seen in the US
Mandal S , Wu HM , Macneil JR , Machesky K , Garcia J , Plikaytis BD , Quinn K , King L , Schmink SE , Wang X , Mayer LW , Clark TA , Gaskell JR , Messonnier NE , Diorio M , Cohn AC . Clin Infect Dis 2013 57 (3) 344-8 BACKGROUND: College students living in residential halls are at increased risk of meningococcal disease. Unlike for serogroups prevented by quadrivalent meningococcal vaccines, public health response to outbreaks of serogroup B meningococcal disease is limited by lack of a US licensed vaccine. METHODS: In March 2010 we investigated a prolonged outbreak of serogroup B disease associated with a university. In addition to case ascertainment, molecular typing of isolates was performed to characterize the outbreak. We conducted a matched case-control study to examine risk factors for serogroup B disease. Five controls per case, matched by college year, were randomly selected. Participants completed a risk factor questionnaire. Data were analyzed using conditional logistic regression. RESULTS: Between January 2008 and November 2010, we identified 13 meningococcal disease cases (seven confirmed, four probable, and two suspected) among university students (ten) or university-linked persons (three). One student died. Ten cases were determined to be serogroup B. Isolates from six confirmed cases had an indistinguishable pulse-field gel electrophoresis pattern and belonged to sequence type ST-269, clonal complex 269. Factors significantly associated with disease were Greek Society membership (matched odds ratio [mOR] 15.0; p=0.03), >1 kissing partner (mOR 13.7; p=0.03) and attending bars (mOR 8.1; p=0.04). CONCLUSIONS: The outbreak was associated with a novel serogroup B strain (CC269) and risk factors indicative of increased social mixing. Control measures were appropriate but limited by lack of vaccine. Understanding serogroup B transmission in college and other settings will help inform use of serogroup B vaccines currently under consideration for licensure. |
Epidemiologic and laboratory features of a large outbreak of pertussis-like illnesses associated with co-circulating Bordetella holmesii and Bordetella pertussis -- Ohio, 2010-2011
Rodgers L , Martin SW , Cohn A , Budd J , Marcon M , Terranella A , Mandal S , Salamon D , Leber A , Tondella ML , Tatti K , Spicer K , Emanuel A , Koch E , McGlone L , Pawloski L , Lemaile-Williams M , Tucker N , Iyer R , Clark TA , Diorio M . Clin Infect Dis 2012 56 (3) 322-31 BACKGROUND: During May 9 2010-May 7 2011, an outbreak of pertussis-like illness (incidence 80 cases/100,000 persons) occurred in Franklin County, Ohio. The majority of cases were identified by IS481-directed polymerase chain reaction (PCR), which does not differentiate among Bordetella species. We sought to determine outbreak etiology and epidemiologic characteristics. METHODS: We obtained demographic, clinical, and vaccination-related data from the Ohio Disease Reporting System and Impact Statewide Immunization Information System. We tested sera from 14 patients for anti-pertussis toxin (PT) antibodies and used species-specific PCR on 298 nasopharyngeal specimens. RESULTS: Reported cases totaled 918. IS481 results were available for 10 serologically tested patients; 5/10 had discordant anti-PT antibody and IS481 results, suggestive of Bordetella holmesii, which lacks PT and harbors IS481. We identified specific Bordetella species in 164 of 298 specimens tested with multitarget PCR; B. holmesii and Bordetella pertussis were exclusively detected among 48 (29%) and 112 (68%), respectively; both were detected in 4 (2%). Among 48 patients with B. holmesii infections, 63% were aged 11-18 years, compared with 35% of 112 patients with B. pertussis infections (P = .001). Symptoms were similar among B. holmesii and B. pertussis-infected patients. Adolescent pertussis ("Tdap") booster vaccinations were more effective against B. pertussis than B. holmesii (effectiveness: 67% and 36%, respectively; 95% confidence intervals: 38%-82% and -33%-69%, respectively). CONCLUSIONS: We report the first documented mixed outbreak of B. pertussis and B. holmesii infections. B. holmesii particularly affected adolescents. Although laboratory capacity limitations might inhibit routine use of multitarget PCRs for clinical diagnosis; focused testing and enhanced surveillance might improve understanding the burden of B. holmesii infection. |
Streptococcus salivarius meningitis case strain traced to oral flora of anesthesiologist
Shewmaker PL , Gertz Jr RE , Kim CY , de Fijter S , Diorio M , Moore MR , Beall BW . J Clin Microbiol 2010 48 (7) 2589-91 Two women in labor received intrapartum spinal anesthesia from the same anesthesiologist approximately one hour apart. Within 15 hours both patients developed Streptococcus salivarius meningitis and one patient died. Blood and CSF from both patients and tongue swab specimens from the anesthesiologist yielded isolates of an indistinguishable S. salivarius strain. |
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