Rosamund F. Lewis

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The changing epidemiology of yellow fever and continued reports of rare but serious adverse events associated with yellow fever vaccine have drawn attention to the need to revisit criteria for the designation of areas with risk for yellow fever virus activity, and to revise the vaccine recommendations for international travel. WHO convened a working group(More)
Hepatitis B exposure was assessed in 311 health workers in Uganda, a highly endemic country. Health workers were selected by random sampling from a categorized list of health workers at district level, proportionate to the population of each district. Whereas 60.1% of health workers have evidence of hepatitis B infection, with 8.7% being chronic carriers(More)
OBJECTIVE To guide immunization policy, we determined the public health benefit of introducing Haemophilus influenzae type b (Hib) vaccine in Uganda and estimated the vaccine effectiveness. METHODS Surveillance data for acute bacterial meningitis among children aged 0-59 months were reviewed from three hospital sentinel sites, for July 2001 to June 2007,(More)
Parents and caretakers of young children often have concerns about vaccine safety and adverse events following immunization (AEFI). Little is known about vaccine safety perceptions in Uganda and their influence on parental decision-making about infant immunization. The study objectives were: to identify community sources of information on immunization,(More)
BACKGROUND Yellow fever is a vector-borne disease affecting humans and non-human primates in tropical areas of Africa and South America. While eradication is not feasible due to the wildlife reservoir, large scale vaccination activities in Africa during the 1940s to 1960s reduced yellow fever incidence for several decades. However, after a period of low(More)
BACKGROUND Infant immunization against hepatitis B began in Uganda in 2002. OBJECTIVE To determine the baseline prevalence of hepatitis B virus (HBV) infection and explore risk factors. METHODS A hepatitis B prevalence study was nested in the 2005 national HIV/AIDS serobehavioural survey. Demographic characteristics and risk factors were explored by(More)
Affordable pneumococcal conjugate vaccines will soon become available to developing countries through the Global Alliance for Vaccines and Immunization. Data on Streptococcus pneumoniae meningitis epidemiology in Uganda will assist decision makers in determining the best national vaccine policy. We reviewed acute bacterial meningitis surveillance data for(More)
Social networking sites (SNSs) have gained substantial popularity among youth in recent years. However, the relationship between the use of these Web-based platforms and mental health problems in children and adolescents is unclear. This study investigated the association between time spent on SNSs and unmet need for mental health support, poor self-rated(More)
BACKGROUND In November 2009, Sierra Leone conducted a preventive yellow fever (YF) vaccination campaign targeting individuals aged nine months and older in six health districts. The campaign was integrated with a measles follow-up campaign throughout the country targeting children aged 9-59 months. For both campaigns, the operational objective was to reach(More)
With rubella and, until recently, measles highly endemic in Uganda, health personnel are at risk of these vaccine-preventable diseases and a source of transmission to patients. Measles and rubella serology (IgG) and history of exposure and vaccination were determined among 311 health care workers in a nationwide study. All tested positive for measles IgG,(More)