Last data update: Jun 17, 2024. (Total: 47034 publications since 2009)
Records 1-4 (of 4 Records) |
Query Trace: Villarruel G [original query] |
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Two rotavirus outbreaks caused by genotype G2P[4] at large retirement communities: cohort studies.
Cardemil CV , Cortese MM , Medina-Marino A , Jasuja S , Desai R , Leung J , Rodriguez-Hart C , Villarruel G , Howland J , Quaye O , Tam KI , Bowen MD , Parashar UD , Gerber SI . Ann Intern Med 2012 157 (9) 621-31 BACKGROUND: Outbreaks of rotavirus gastroenteritis in elderly adults are reported infrequently but are often caused by G2P[4] strains. In 2011, outbreaks were reported in 2 Illinois retirement facilities. OBJECTIVE: To implement control measures, determine the extent and severity of illness, and assess risk factors for disease among residents and employees. DESIGN: Cohort studies using surveys and medical chart abstraction. SETTING: Two large retirement facilities in Cook County, Illinois. PATIENTS: Residents and employees at both facilities and community residents with rotavirus disease. MEASUREMENTS: Attack rates, hospitalization rates, and rotavirus genotype. RESULTS: At facility A, 84 of 324 residents (26%) were identified with clinical or laboratory-confirmed rotavirus gastroenteritis (median age, 84 years) and 11 (13%) were hospitalized. The outbreak lasted 7 weeks. At facility B, 90 case patients among 855 residents (11%) were identified (median age, 88 years) and 19 (21%) were hospitalized. The facility B outbreak lasted 9.3 weeks. Ill employees were identified at both locations. In each facility, attack rates seemed to differ by residential setting, with the lowest rates among those in more separated settings or with high baseline level of infection control measures. The causative genotype for both outbreaks was G2P[4]. Some individuals shed virus detected by enzyme immunoassay or genotyping reverse transcription polymerase chain reaction for at least 35 days. G2P[4] was also identified in 17 of 19 (89%) samples from the older adult community but only 15 of 40 (38%) pediatric samples. LIMITATION: Medical or cognitive impairment among residents limited the success of some interviews. CONCLUSION: Rotavirus outbreaks can occur among elderly adults in residential facilities and can result in considerable morbidity. Among older adults, G2P[4] may be of unique importance. Health professionals should consider rotavirus as a cause of acute gastroenteritis in adults. PRIMARY FUNDING SOURCE: None. |
The epidemiology and clinical characteristics of young children hospitalized with respiratory syncytial virus infections in Guatemala (2007-2010)
Langley GF , McCracken J , Arvelo W , Estevez A , Villarruel G , Prill M , Iwane M , Gray J , Moscoso F , Reyes L , Moir JC , Ortiz J , Lindblade K . Pediatr Infect Dis J 2013 32 (6) 629-35 BACKGROUND: There have been few population-based studies from Central America on respiratory syncytial virus (RSV) infections in young children. We report population-based incidence rates and describe epidemiological and clinical characteristics of children < 5 years old hospitalized with RSV infections in Guatemala. METHODS: Prospective, active hospital-based surveillance for acute respiratory infections in children <5 years old was conducted at three hospitals in Guatemala from November 2007 through July 2010. RSV hospitalization rates were calculated for areas where the catchment population could be defined. Comparisons were made between children who were RSV-positive and RSV-negative. RESULTS: RSV was detected in 549 (25%) of enrolled children. Overall, annual rates of RSV hospitalizations ranged from 5.9 to 45.9 and 2.0 to 13.7 per 1000 children <1 year old and <5 years old, respectively, but varied by location and calendar year. Rates generally decreased with age-children <6 months had rates up to 30 times higher than older children, but children >12 months old still had rates up to 5.5 per 1000 per year and accounted for 42% of deaths. Children with RSV infections were more likely to have signs of respiratory distress (85% vs. 63%, p<0.001) compared to those without RSV infections, but case fatality ratios were similar (3-4%). CONCLUSIONS: The large burden and severity of RSV infections in young Guatemalan children is similar in magnitude and age distribution to RSV disease burdens found in other developing countries and suggests that this population would benefit from prevention strategies, including vaccines against RSV that are currently under development. |
Economic impact of the 2009-2010 Guam mumps outbreak on the public health sector and affected families
Mahamud A , Fiebelkorn AP , Nelson G , Aguon A , McKenna J , Villarruel G , Gallagher K , Ortega-Sanchez IR . Vaccine 2012 30 (45) 6444-8 BACKGROUND: The United States Territory of Guam reported a large mumps outbreak of 505 cases during 2009-2010. We assessed the economic impact of the outbreak from the perspectives of the local public health sector and affected families. METHODS: Using standard cost analysis methods, we retrospectively identified all public health personnel involved in the outbreak response and surveyed them about their outbreak-related activities. We then estimated the costs of outbreak-related personnel hours and materials. We also assessed out-of-pocket costs and costs incurred for work-time missed for persons with mumps and their families. We defined the analysis period as February 25-October 22, 2010. RESULTS: Seventy-six public health personnel were involved in outbreak response activities. Overall, the response required approximately 8264 person-hours, 2380 miles driven, and 3000 doses of measles-mumps-rubella vaccine ordered. The cost to the public health sector was 256,785 U.S. dollars (USD). Families of 102 persons with mumps were interviewed. An estimated 761 USD per person with mumps was spent by families; 88% of this cost was due to missed days of work. The estimated total cost to families of the 470 persons with mumps during the analysis period was 357,670 USD. Total outbreak-related costs were 614,455 USD. CONCLUSIONS: The costs reported underscore the impact of mumps outbreaks in highly vaccinated populations and the need for effective mumps prevention and control strategies. |
The implementation of a culturally based HIV sexual risk reduction program for Latino youth in a Denver area high school
Mueller TE , Castaneda CA , Sainer S , Martinez D , Herbst JH , Wilkes AL , Villarruel AM . AIDS Educ Prev 2009 21 164-70 In the United States, Latino youth experience disproportionately higher rates of teen pregnancy and sexually transmitted infections (STIs) than non-Latino Whites. As a result, organizations serving Latino youth seek culturally appropriate evidence-based prevention programs that promote sexual abstinence and condom use. Cuidate! is an efficacious HIV sexual risk reduction program for Latino youth aged 13-18. The program incorporates cultural beliefs that are common among Latino youth and associated with sexual risk behavior, and uses these beliefs to frame abstinence and condom use as culturally accepted and effective ways to prevent unintended pregnancy and STIs, including HIV/AIDS. Cuidate! has been successfully delivered in community agencies and after-school programs but has not been integrated into an existing school curriculum. This brief case study describes efforts to implement Cuidate! in a predominantly Latino urban high school in Denver. Ninety-three youth participated in the program from October 2007 to May 2008. Cuidate! was adapted to accommodate the typical class period by delivering program content over a larger number of sessions and extending the total amount of time of the program to allow for additional activities. Major challenges of program implementation included student recruitment and the "opt in" policy for participation. Despite these challenges, Cuidate! was implemented with minor adaptations in a school setting. |
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