OBJECTIVE To assess whether pediatric practices with a system to identify and recall children with high-risk conditions (HRCs) could maintain high influenza vaccination coverage levels among these children during a vaccine shortage year. DESIGN Observational study using data from a computerized billing database and an electronic immunization information system. SETTING Four Denver pediatric...

Since mid-2006, the Advisory Committee on Immunization Practices (ACIP) has recommended routine vaccination of adolescent girls at ages 11 or 12 years with 3 doses of human papillomavirus (HPV) vaccine. Two HPV vaccines are currently available in the United States. Both the quadrivalent (HPV4) and bivalent (HPV2) vaccines protect against HPV types 16 and 18, which cause 70% of cervical cancers ...

Previous modelling studies have formalized the "Tragedy of the Commons" that can occur under a voluntary vaccination policy, when there is a significant payoff not to vaccinate under conditions where high vaccine coverage affords indirect protection to nonvaccinators through herd immunity effects. Most of these previous studies have considered only a homogeneous population. However, in real pop...

Every year in the United States more than 12,000 women are diagnosed with cervical cancer, a disease principally caused by human papillomavirus (HPV). Bivalent and quadrivalent HPV vaccines protect against 66% of HPV-associated cervical cancers, and a new nonavalent vaccine protects against an additional 15% of cervical cancers. However, vaccination policy varies across states, and migration be...

BACKGROUND The reported cases with varicella have not decreased and outbreaks of varicella among vaccinated children continue to be reported 9 years after the public vaccination program in Taipei. We investigated an outbreak to determine varicella vaccine coverage and effectiveness. METHODS An outbreak occurred in an elementary school which located in southern Taipei from April 2007 through M...

Seasonal influenza vaccination coverage in most EU/EEA remains suboptimal. Providers' and users' confidence in influenza vaccines is undermined by reports of moderate to low vaccine effectiveness and by the lack of solid evidence on disease burden. A study from Preaud and co. indicates that even with current levels of vaccine effectiveness, increasing vaccination coverage would significantly re...

The purpose of this study was to compare influenza vaccination rates of pregnant women in a public safety-net health system to national coverage rates during the 2009-2010 pandemic influenza season. A chart review of a random sample of deliveries was undertaken to determine rates of coverage and predictors of vaccine coverage of women who obtained prenatal care and delivered in our health syste...

OBJECTIVE To compare coverage estimates of foreign-born children 19 to 35 months old with those of US-born children of the same age group. METHODS The National Immunization Survey is a multistage, random-digit dialing survey designed to measure vaccination coverage estimates of US children 19 to 35 months old. Data from 1999-2000 were combined to permit comparison of vaccination coverage amon...

considering the circulation of bordetella pertussis clinical strains among populations with high vaccination coverage, it is necessary to have a proper understanding of this bacterium causing whooping cough. various techniques, which are available for studying b. pertussis, can facilitate a proper comparison between different populations. we genotypically analyzed a collection of two vaccine st...

A vaccination coverage survey conducted in East Delhi in September 1999 showed that only 58.6 per cent of the children aged 12-23 months had received the full course of the vaccines recommended under the national immunization programme. Coverage with the third dose of DTP and oral polio vaccines was around 71 per cent, and with BCG and measles vaccines was 83 and 59 per cent, respectively. Drop...