Last data update: Dec 02, 2024. (Total: 48272 publications since 2009)
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Query Trace: Williams CL[original query] |
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Urban and rural healthcare providers' perspectives on HPV vaccination in Minnesota
Polter EJ , Christianson B , Steinberg A , Doan M , Ljungman H , Sundaram ME , VanWormer JJ , Williams CL , McLean HQ , Bendixsen C . Hum Vaccin Immunother 2023 19 (3) 2291859 Human papillomavirus (HPV) vaccination can dramatically reduce the incidence of HPV-associated cancers. However, HPV vaccination coverage in rural areas is lower than in urban areas, and overall HPV vaccination coverage in the United States remains lower than other adolescent vaccines. We conducted 20 qualitative interviews with adolescent healthcare providers and clinic staff in urban and rural Minnesota and assessed their perspectives on HPV vaccination. Guiding interview topics included: strategies to persuade families to vaccinate their children, the impact of the patient-provider relationship and the clinical environment on vaccination uptake, and provider perceptions of parents' vaccine attitudes. In thematic analysis, all participants reported using common vaccination strategies, such as framing the HPV vaccine in terms of cancer prevention. The analysis also revealed three themes described as occurring uniquely or more intensely in rural communities than urban communities: the rural value of choice or independence, the spread of misinformation, and close-knit, multifaceted patient-provider relationships in clinical practice. Interventions aimed at increasing HPV vaccination should consider the distinctive circumstances of rural healthcare providers and patients. |
COVID-19 booster dose reminder/recall for adolescents: Findings from a health-care system in Wisconsin
Alonge OD , Hanson KE , Eggebrecht M , Funk P , Christianson B , Williams CL , Belongia EA , McLean HQ . J Adolesc Health 2023 73 (5) 953-956 PURPOSE: This study assessed efficacy of one-time COVID-19 booster reminder/recall for booster eligible adolescents in a health-care system in Wisconsin. METHODS: COVID-19 booster eligible patients aged 12-17 years were randomized 1:1 to receive one reminder/recall message from the health-care system using the parent's preferred communication method (intervention) or no reminder/recall (usual care) in May 2022. RESULTS: Reminder/recall was sent to 2,146/4,296 (50%) adolescent patients. During the 90-day evaluation period following randomization, booster dose receipt was 2.0 percentage points (CI: 0.3%-3.7%) higher in the intervention (10.0%) versus usual care groups (8.0%). Among patients with ≥1 preventive visit during the evaluation period, uptake was 7.5 percentage points higher in the intervention (16.4%) versus usual care groups (8.9%). DISCUSSION: A single COVID-19 booster dose reminder/recall resulted in a small but statistically significant increase in booster dose receipt, though uptake overall was low. Additional strategies are needed to increase uptake. |
Human papillomavirus vaccine beliefs and practice characteristics in rural and urban adolescent care providers
Goessl CL , Christianson B , Hanson KE , Polter EJ , Olson SC , Boyce TG , Dunn D , Williams CL , Belongia EA , McLean HQ , VanWormer JJ . BMC Public Health 2022 22 (1) 1322 BACKGROUND: The human papillomavirus (HPV) vaccine is recommended for all adolescents age 11-12 years. HPV vaccine coverage remains suboptimal in the United States though, particularly in rural areas. We surveyed adolescent immunization providers in two Midwestern states to assess rural vs. urban differences in HPV vaccine resources, practices, and attitudes. METHODS: A cross-sectional survey was sent to all licensed adolescent care providers in a subset of urban and rural counties in Minnesota and Wisconsin during 2019. Multivariable regression was used to identify attitudes and practices that differentiated rural vs. urban providers. RESULTS: There were 437 survey respondents (31% rural). Significantly fewer rural providers had evening/weekend adolescent vaccination appointments available (adjusted odds ratio (aOR) = 0.21 [95% confidence interval (CI): 0.12, 0.36]), had prior experience with adolescent vaccine quality improvement projects (aOR = 0.52 [95% CI: 0.28, 0.98]), and routinely recommended HPV vaccine during urgent/acute care visits (aOR = 0.37 [95% CI: 0.18, 0.79]). Significantly more rural providers had standing orders to administer all recommended adolescent vaccines (aOR = 2.81 [95% CI: 1.61, 4.91]) and reported giving HPV vaccine information to their patients/families before it is due (aOR = 3.10 [95% CI: 1.68, 5.71]). CONCLUSIONS: Rural vs. urban differences in provider practices were mixed in that rural providers do not implement some practices that may promote HPV vaccination, but do implement other practices that promote HPV vaccination. It remains unclear how the observed differences would affect HPV vaccine attitudes or adolescent vaccination decisions for parents in rural areas. |
Factors associated with human papillomavirus and meningococcal vaccination among adolescents living in rural and urban areas
Boyce TG , Christianson B , Hanson KE , Dunn D , Polter E , VanWormer JJ , Williams CL , Belongia EA , McLean HQ . Vaccine X 2022 11 100180 BACKGROUND: Studies have shown that adolescent vaccination rates with human papillomavirus (HPV) and quadrivalent meningococcal conjugate (MenACWY) vaccines are lower in rural areas of the U.S. than in urban areas. We sought to determine factors associated with vaccine acceptance in these two settings. METHODS: We conducted a cross-sectional survey of 536 parents or guardians of teens age 13 through 15 years in select rural and urban counties of Minnesota and Wisconsin. We collected information on demographic variables, receipt of adolescent vaccines, and attitudes toward HPV vaccine in particular. Multivariable logistic regression models were used to assess associations between covariates and outcomes of interest (HPV vaccine receipt and MenACWY receipt). RESULTS: Of the 536 respondents, 267 (50%) resided in a rural county. Most respondents were female (78%) and non-Hispanic White (88%). About half (52%) of teens of the surveyed parents received the three vaccines recommended specifically for adolescents: 90% received tetanus-diphtheria-acellular pertussis (Tdap), 84% received MenACWY, and 60% received one or more doses of HPV vaccine. Rural and urban parents surveyed differed on several covariates relating to teen's health services, parent's demographics, and household characteristics. Parent's perception of the importance that their healthcare providers placed on vaccination with HPV and MenACWY were independently associated with receipt of each of those vaccines (odds ratio [OR] 6.37, 95% confidence interval [CI] 2.90-13.96 and OR 2.15, 95% CI 1.07-4.31, respectively). Parents of vaccinated teens were less likely to report concerns about potential harm from the HPV vaccine or having heard stories about health problems caused by the HPV vaccine. CONCLUSION: Teen receipt of HPV vaccine and MenACWY appears to be influenced by parents' perception of vaccine importance, provider recommendations, and concerns regarding potential harm from the HPV vaccine. Continued education of providers and parents of the importance of adolescent vaccinations is warranted. |
Examining associations between knowledge and vaccine uptake using the Human Papillomavirus Knowledge Questionnaire (HPV-KQ)
Harrison SE , Yelverton V , Wang Y , Ostermann J , Fish LJ , Williams CL , Vasudevan L , Walter EB . Am J Health Behav 2021 45 (5) 810-827 Objectives: Understanding the relationship between human papillomavirus (HPV) knowledge and vaccination behavior is important to inform public health interventions, yet few validated HPV knowledge scales exist. This study describes development of the Human Papillomavirus Knowledge Questionnaire (HPV-KQ) and its validation with parents residing in the southern United States (US). Methods: Drawing on previously published measures, we developed the 13-item HPV-KQ and administered the scale via Web-based survey to parents (N=1105) of adolescents ages 9 to 17 years. Dimensionality, internal consistency, model fit, and predictive validity were assessed. Results: The scale was bidimensional. One factor captured general HPV knowledge, and the second factor captured perceptions of gender differences in HPV infection and vaccine recommendations. The 13-item scale and 2-factor solution displayed strong internal consistency and good model fit. Parents of vaccinated adolescents scored higher on the 13-item HPV-KQ (Mean = 8.56) than parents of unvaccinated adolescents (Mean = 6.43) (p < .001). In regression models, controlling for key covariates, parents' performance on the HPV-KQ predicted adolescent HPV vaccination (p < .001). Conclusions: Evaluation indicates the HPV-KQ is a reliable and valid tool for measuring knowledge of HPV and the HPV vaccine among parents residing in the southern US. We recommend further efforts to validate the scale with other populations. |
National, Regional, State, and Selected Local Area Vaccination Coverage Among Adolescents Aged 13-17 Years - United States, 2020.
Pingali C , Yankey D , Elam-Evans LD , Markowitz LE , Williams CL , Fredua B , McNamara LA , Stokley S , Singleton JA . MMWR Morb Mortal Wkly Rep 2021 70 (35) 1183-1190 The Advisory Committee on Immunization Practices (ACIP) recommends that adolescents aged 11-12 years routinely receive tetanus, diphtheria, and acellular pertussis (Tdap); meningococcal conjugate (MenACWY); and human papillomavirus (HPV) vaccines. Catch-up vaccination is recommended for hepatitis B (HepB); hepatitis A (HepA); measles, mumps, and rubella (MMR); and varicella (VAR) vaccines for adolescents whose childhood vaccinations are not current. Adolescents are also recommended to receive a booster dose of MenACWY vaccine at age 16 years, and shared clinical decision-making is recommended for the serogroup B meningococcal vaccine (MenB) for persons aged 16-23 years (1). To estimate coverage with recommended vaccines, CDC analyzed data from the 2020 National Immunization Survey-Teen (NIS-Teen) for 20,163 adolescents aged 13-17 years.* Coverage with ≥1 dose of HPV vaccine increased from 71.5% in 2019 to 75.1% in 2020. The percentage of adolescents who were up to date(†) with HPV vaccination (HPV UTD) increased from 54.2% in 2019 to 58.6% in 2020. Coverage with ≥1 dose of Tdap, ≥1 dose (and among adolescents aged 17 years, ≥2 doses) of MenACWY remained similar to coverage in 2019 (90.1%, 89.3%, and 54.4% respectively). Coverage increased for ≥2 doses of HepA among adolescents aged 13-17 years and ≥1 dose of MenB among adolescents aged 17 years. Adolescents living below the federal poverty level(§) had higher HPV vaccination coverage than adolescents living at or above the poverty level. Adolescents living outside a metropolitan statistical area (MSA)(¶) had lower coverage with ≥1 MenACWY and ≥1 HPV dose, and a lower proportion being HPV UTD than adolescents in MSA principal cities. In 2020, the COVID-19 pandemic disrupted routine immunization services. Results from the 2020 NIS-Teen reflect adolescent vaccination coverage before the COVID-19 pandemic. The 2020 NIS-Teen data could be used to assess the impact of the COVID-19 pandemic on catch-up vaccination but not on routine adolescent vaccination because adolescents included in the survey were aged ≥13 years, past the age when most routine adolescent vaccines are recommended, and most vaccinations occurred before March 2020. Continued efforts to reach adolescents whose routine medical care has been affected by the COVID-19 pandemic are necessary to protect persons and communities from vaccine-preventable diseases and outbreaks. |
National, regional, state, and selected local area vaccination coverage among adolescents aged 13-17 years - United States, 2019
Elam-Evans LD , Yankey D , Singleton JA , Sterrett N , Markowitz LE , Williams CL , Fredua B , McNamara L , Stokley S . MMWR Morb Mortal Wkly Rep 2020 69 (33) 1109-1116 Three vaccines are recommended by the Advisory Committee on Immunization Practices (ACIP) for routine vaccination of adolescents aged 11-12 years to protect against 1) pertussis; 2) meningococcal disease caused by types A, C, W, and Y; and 3) human papillomavirus (HPV)-associated cancers (1). At age 16 years, a booster dose of quadrivalent meningococcal conjugate vaccine (MenACWY) is recommended. Persons aged 16-23 years can receive serogroup B meningococcal vaccine (MenB), if determined to be appropriate through shared clinical decision-making. CDC analyzed data from the 2019 National Immunization Survey-Teen (NIS-Teen) to estimate vaccination coverage among adolescents aged 13-17 years in the United States.* Coverage with ≥1 dose of HPV vaccine increased from 68.1% in 2018 to 71.5% in 2019, and the percentage of adolescents who were up to date(†) with the HPV vaccination series (HPV UTD) increased from 51.1% in 2018 to 54.2% in 2019. Both HPV vaccination coverage measures improved among females and males. An increase in adolescent coverage with ≥1 dose of MenACWY (from 86.6% in 2018 to 88.9% in 2019) also was observed. Among adolescents aged 17 years, 53.7% received the booster dose of MenACWY in 2019, not statistically different from 50.8% in 2018; 21.8% received ≥1 dose of MenB, a 4.6 percentage point increase from 17.2% in 2018. Among adolescents living at or above the poverty level,(§) those living outside a metropolitan statistical area (MSA)(¶) had lower coverage with ≥1 dose of MenACWY and with ≥1 HPV vaccine dose, and a lower percentage were HPV UTD, compared with those living in MSA principal cities. In early 2020, the coronavirus disease 2019 (COVID-19) pandemic changed the way health care providers operate and provide routine and essential services. An examination of Vaccines for Children (VFC) provider ordering data showed that vaccine orders for HPV vaccine; tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis vaccine (Tdap); and MenACWY decreased in mid-March when COVID-19 was declared a national emergency (Supplementary Figure 1, https://stacks.cdc.gov/view/cdc/91795). Ensuring that routine immunization services for adolescents are maintained or reinitiated is essential to continuing progress in protecting persons and communities from vaccine-preventable diseases and outbreaks. |
Trends in human papillomavirus (HPV) vaccination initiation among adolescents aged 13-17 by metropolitan statistical area (MSA) status, National Immunization Survey - Teen, 2013 - 2017
Walker TY , Elam-Evans LD , Williams CL , Fredua B , Yankey D , Markowitz LE , Stokley S . Hum Vaccin Immunother 2019 16 (3) 1-8 Disparities in HPV vaccination coverage by metropolitan statistical area (MSA) status were observed in the 2016 and 2017 National Immunization Survey - Teen (NIS-Teen). In 2017, HPV vaccination initiation (>/=1dose) coverage was 11 percentage points lower for adolescents living in non-MSAs (mostly rural areas) and 7 percentage points lower among those living in MSA, non-principal cities (suburban areas) compared to those living in MSA, principal cities (mostly urban areas). In order to understand how this disparity has changed over time, we examined trends in HPV vaccine initiation by MSA status from 2013 to 2017. Weighted linear regression by survey year was used to estimate annual percentage point changes in HPV vaccination initiation. The five-year average annual percentage point increases in HPV vaccination initiation coverage were 5.2 in mostly urban areas, 4.9 for suburban areas, and 5.2 for mostly rural areas. Despite increases in each MSA area, coverage in mostly rural areas was consistently and significantly lower than coverage in mostly urban areas. Coverage was significantly lower among teens living in mostly rural areas regardless of poverty status, sex, and race/ethnicity except among black, non-Hispanic adolescents. There was no significant change in the magnitude of the disparity between mostly urban areas and mostly rural areas over time (p = .98). A better understanding of the facilitators and barriers to HPV vaccination in mostly rural areas is needed to identify and implement targeted strategies to improve HPV vaccination coverage and reduce these disparities. |
Factors associated with not receiving HPV vaccine among adolescents by metropolitan statistical area status, United States, National Immunization Survey-Teen, 2016-2017
Williams CL , Walker TY , Elam-Evans LD , Yankey D , Fredua B , Saraiya M , Stokley S . Hum Vaccin Immunother 2019 16 (3) 562-572 The 2016 and 2017 National Immunization Surveys-Teen (NIS-Teen) highlighted disparities in human papillomavirus (HPV) vaccination coverage by metropolitan statistical area (MSA) status. Coverage with >/=1 dose of HPV vaccine was significantly lower among teens in suburban and mostly- rural areas than it was among those in mostly-urban areas. Reasons underlying this disparity are poorly understood; this analysis sought to identify sociodemographic factors associated with not initiating the HPV vaccine series and to determine whether these factors differed by MSA status. Using NIS-Teen data for a sample of 41,424 adolescents from the 2016 and 2017 survey years, multivariate logistic regression was utilized to assess associations between various sociodemographic factors and non-initiation of the HPV vaccine series by MSA status. Adjusted prevalence ratios and 95% confidence intervals are reported. A secondary analysis assessed missed opportunities for HPV vaccination by MSA status and estimated what coverage could be if these missed opportunities had not occurred. Most factors associated with not receiving HPV vaccine were similar across all three MSAs, including living in the South, having a mother with some college education, not having an 11-12 year old well-child visit, and not receiving a provider recommendation for vaccination. Others were associated with non-initiation of the HPV vaccine series in only specific MSAs. Teens in suburban areas (82.2%) were more likely to miss opportunities for HPV vaccination than those in mostly-urban (79.3%) areas. Coverage with >/=1 dose of HPV vaccine in all three MSAs would be substantially higher if these missed opportunities had been eliminated. |
National, regional, state, and selected local area vaccination coverage among adolescents aged 13-17 years - United States, 2018
Walker TY , Elam-Evans LD , Yankey D , Markowitz LE , Williams CL , Fredua B , Singleton JA , Stokley S . MMWR Morb Mortal Wkly Rep 2019 68 (33) 718-723 The Advisory Committee on Immunization Practices (ACIP) recommends routine vaccination of persons aged 11-12 years to protect against certain diseases, including human papillomavirus (HPV)-associated cancers, meningococcal disease, and pertussis (1). A booster dose of quadrivalent meningococcal conjugate vaccine (MenACWY) is recommended at age 16 years, and serogroup B meningococcal vaccine (MenB) may be administered to persons aged 16-23 years (1). To estimate vaccination coverage among adolescents in the United States, CDC analyzed data from the 2018 National Immunization Survey-Teen (NIS-Teen) which included 18,700 adolescents aged 13-17 years.* During 2017-2018, coverage with >/=1 dose of HPV vaccine increased from 65.5% to 68.1%, and the percentage of adolescents up-to-date(dagger) with the HPV vaccine series increased from 48.6% to 51.1%, although the increases were only observed among males. Vaccination coverage increases were also observed for >/=1 MenACWY dose (from 85.1% to 86.6%) and >/=2 MenACWY doses (from 44.3% to 50.8%). Coverage with tetanus and reduced diphtheria toxoids and acellular pertussis vaccine (Tdap) remained stable at 89%. Disparities in coverage by metropolitan statistical area (MSA)( section sign) and health insurance status identified in previous years persisted (2). Coverage with >/=1 dose of HPV vaccine was higher among adolescents whose parents reported receiving a provider recommendation; however, prevalence of parents reporting receiving a recommendation for adolescent HPV vaccination varied by state (range = 60%-91%). Supporting providers to give strong recommendations and effectively address parental concerns remains a priority, especially in states and rural areas where provider recommendations were less commonly reported. |
National, regional, state, and selected local area vaccination coverage among adolescents aged 13-17 years - United States, 2017
Walker TY , Elam-Evans LD , Yankey D , Markowitz LE , Williams CL , Mbaeyi SA , Fredua B , Stokley S . MMWR Morb Mortal Wkly Rep 2018 67 (33) 909-917 The Advisory Committee on Immunization Practices (ACIP) recommends routine vaccination of persons aged 11-12 years with human papillomavirus (HPV) vaccine, quadrivalent meningococcal conjugate vaccine (MenACWY), and tetanus and reduced diphtheria toxoids and acellular pertussis vaccine (Tdap). A booster dose of MenACWY is recommended at age 16 years (1), and catch-up vaccination is recommended for hepatitis B vaccine (HepB), measles, mumps, and rubella vaccine (MMR), and varicella vaccine (VAR) for adolescents whose childhood vaccinations are not up to date (UTD) (1). ACIP also recommends that clinicians may administer a serogroup B meningococcal vaccine (MenB) series to adolescents and young adults aged 16-23 years, with a preferred age of 16-18 years (2). To estimate U.S. adolescent vaccination coverage, CDC analyzed data from the 2017 National Immunization Survey-Teen (NIS-Teen) for 20,949 adolescents aged 13-17 years.* During 2016-2017, coverage increased for >/=1 dose of HPV vaccine (from 60.4% to 65.5%), >/=1 dose of MenACWY (82.2% to 85.1%), and >/=2 doses of MenACWY (39.1% to 44.3%). Coverage with Tdap remained stable at 88.7%. In 2017, 48.6% of adolescents were UTD with the HPV vaccine series (HPV UTD) compared with 43.4% in 2016.(dagger) On-time vaccination (receipt of >/=2 or >/=3 doses of HPV vaccine by age 13 years) also increased. As in 2016, >/=1-dose HPV vaccination coverage was lower among adolescents living in nonmetropolitan statistical areas (MSAs) (59.3%) than among those living in MSA principal cities (70.1%).( section sign) Although HPV vaccination initiation remains lower than coverage with MenACWY and Tdap, HPV vaccination coverage has increased an average of 5.1 percentage points annually since 2013, indicating that continued efforts to target unvaccinated teens and eliminate missed vaccination opportunities might lead to HPV vaccination coverage levels comparable to those of other routinely recommended adolescent vaccines. |
Sexually transmitted diseases among pregnant women: 5 states, United States, 2009-2011
Williams CL , Harrison LL , Llata E , Smith RA , Meites E . Matern Child Health J 2018 22 (4) 538-545 Introduction Screening for specific sexually transmitted diseases (STDs) during pregnancy has been a longstanding public health recommendation. Prior studies have described associations between these infections and socioeconomic factors such as race/ethnicity and education. Objectives We evaluated the prevalence of STDs and the correlation socioeconomic factors have with the presence of these infections among pregnant women in the United States. Methods We conducted an analysis using self-reported data from 12,948 recently pregnant women from the Pregnancy Risk Assessment Monitoring System (PRAMS) in 5 states during 2009-2011. Responses to questions about curable STDs (chlamydia, gonorrhea, syphilis, trichomoniasis) diagnosed during pregnancy were utilized to calculate weighted STD prevalence estimates and 95% confidence intervals (CI). A logistic regression was also conducted to identify maternal socioeconomic characteristics significantly associated with STDs; results are displayed as adjusted prevalence ratios (aPR). The PRAMS protocol was approved at PRAMS participating sites and by CDC's Institutional Review Board. Results Overall, 3.3% (CI 2.9-3.7) reported >/= 1 curable STD during her most recent pregnancy. The adjusted STD prevalence was higher among women with younger age (aPR, 2.4; CI 1.8-3.4), non-Hispanic black race/ethnicity (aPR, 3.3; CI 2.4-4.1), unmarried status (aPR, 2.1; CI 1.4-3.0), no college education (aPR, 1.4; CI 1.0-1.9), annual income < $25,000 (aPR, 2.0; CI 1.3-3.2), and no pre-pregnancy health insurance (aPR, 1.4; CI 1.1-1.8). Conclusions for Practice This is the largest study of prevalence of self-reported curable STDs among U.S. pregnant women. Differences in STD prevalence highlight the association between certain socioeconomic factors and the presence of STDs. |
National, regional, state, and selected local area vaccination coverage among adolescents aged 13-17 years - United States, 2016
Walker TY , Elam-Evans LD , Singleton JA , Yankey D , Markowitz LE , Fredua B , Williams CL , Meyer SA , Stokley S . MMWR Morb Mortal Wkly Rep 2017 66 (33) 874-882 The Advisory Committee on Immunization Practices (ACIP) recommends that adolescents routinely receive tetanus, diphtheria, and acellular pertussis vaccine (Tdap), meningococcal conjugate vaccine (MenACWY), and human papillomavirus (HPV) vaccine (1) at age 11-12 years. ACIP also recommends catch-up vaccination with hepatitis B vaccine, measles, mumps, and rubella (MMR) vaccine, and varicella vaccine for adolescents who are not up to date with childhood vaccinations. ACIP recommends a booster dose of MenACWY at age 16 years (1). In December 2016, ACIP updated HPV vaccine recommendations to include a 2-dose schedule for immunocompetent adolescents initiating the vaccination series before their 15th birthday (2). To estimate adolescent vaccination coverage in the United States, CDC analyzed data from the 2016 National Immunization Survey-Teen (NIS-Teen) for 20,475 adolescents aged 13-17 years. During 2015-2016, coverage increased for ≥1 dose of Tdap (from 86.4% to 88.0%) and for each HPV vaccine dose (from 56.1% to 60.4% for ≥1 dose). Among adolescents aged 17 years, coverage with ≥2 doses of MenACWY increased from 33.3% to 39.1%. In 2016, 43.4% of adolescents (49.5% of females; 37.5% of males) were up to date with the HPV vaccination series, applying the updated HPV vaccine recommendations retrospectively.dagger Coverage with ≥1 HPV vaccine dose varied by metropolitan statistical area (MSA) status and was lowest (50.4%) among adolescents living in non-MSA areas and highest (65.9%) among those living in MSA central cities. section sign Adolescent vaccination coverage continues to improve overall; however, substantial opportunities exist to further increase HPV-associated cancer prevention. |
Using acute flaccid paralysis surveillance as a platform for vaccine-preventable disease surveillance
Wassilak SGF , Williams CL , Murrill CS , Dahl BA , Ohuabunwo C , Tangermann RH . J Infect Dis 2017 216 S293-S298 Surveillance for acute flaccid paralysis (AFP) is a fundamental cornerstone of the global polio eradication initiative (GPEI). Active surveillance (with visits to health facilities) is a critical strategy of AFP surveillance systems for highly sensitive and timely detection of cases. Because of the extensive resources devoted to AFP surveillance, multiple opportunities exist for additional diseases to be added using GPEI assets, particularly because there is generally 1 district officer responsible for all disease surveillance. For this reason, integrated surveillance has become a standard practice in many countries, ranging from adding surveillance for measles and rubella to integrated disease surveillance for outbreak-prone diseases (integrated disease surveillance and response). This report outlines the current level of disease surveillance integration in 3 countries (Nepal, India, and Nigeria) and proposes that resources continue for long-term maintenance in resource-poor countries of AFP surveillance as a platform for surveillance of vaccine-preventable diseases and other outbreak-prone diseases. |
Epidemiology of HIV among Asians and Pacific Islanders in the United States, 2001-2008
Adih WK , Campsmith M , Williams CL , Hardnett FP , Hughes D . J Int Assoc Physicians AIDS Care (Chic) 2011 10 (3) 150-9 BACKGROUND: Recent analyses have shown increases in combined annual HIV diagnosis rates for Asians and Pacific Islanders (API). METHODS: Using surveillance data from 33 states and 4 dependent areas we investigated the epidemiology of HIV among API during 2001-2008. RESULTS: HIV diagnoses for API during 2001-2008 were predominantly among persons age 30-39 years (40%) and males (78%). The primary risk factor for males was sexual contact with males (78%) and for females, heterosexual contact (86%). API were the only racial/ethnic groups with a statistically significant estimated annual percentage increase (4.4%) in HIV diagnoses over the time period. Thirty-seven percent of HIV diagnoses among API progressed to AIDS in <12 months, with significantly greater likelihood among those 30 years and older. Survival was lower among API with AIDS diagnosis after 49 years of age, and was higher among persons with AIDS whose primary risk factor for infection was heterosexual contact. CONCLUSIONS: In contrast to other racial/ethnic groups, API were the only groups to show a significant increase in HIV diagnoses. A clearer understanding of the reasons for this trend is needed, so that appropriate interventions can be selected and adapted to prevent increased HIV prevalence among API in the U.S. |
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