Research Topics
| Ben A LopmanSummaryAffiliation: Imperial College Country: UK Publications
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Detail Information
Publications
Epidemiology and cost of nosocomial gastroenteritis, Avon, England, 2002-2003Ben A Lopman
Health Protection Agency, London, UK
Emerg Infect Dis 10:1827-34. 2004..Outbreaks were contained faster (7.9 vs. 15.4 days, p = 0.0023) when units were rapidly closed to new admissions (<4 days). Implementing control measures rapidly may be effective in controlling outbreaks...- Creating and validating an algorithm to measure AIDS mortality in the adult population using verbal autopsyBen A Lopman
Department of Infectious Disease Epidemiology, Imperial College London, London, United Kingdom
PLoS Med 3:e312. 2006..A reliable tool that is independent of HIV status is needed for measuring the frequency of AIDS deaths and ultimately the impact of antiretroviral therapy on mortality... - HIV incidence and poverty in Manicaland, Zimbabwe: is HIV becoming a disease of the poor?Ben Lopman
Department of Infectious Disease Epidemiology, Imperial College, London, UK
AIDS 21:S57-66. 2007..Longitudinal data are needed to disentangle the cyclical effects of poverty and HIV as well as to separate historical patterns from contemporary trends of infection... - Linking healthcare associated norovirus outbreaks: a molecular epidemiologic method for investigating transmissionBen A Lopman
Department of Infectious Disease Epidemiology, Imperial College London, London, UK
BMC Infect Dis 6:108. 2006..Here, we present a combined molecular and statistical method for assessing:1) whether observed clusters provide evidence of local transmission and2) the probability that anecdotally|linked outbreaks truly shared a transmission event... - Assessing adult mortality in HIV-1-afflicted Zimbabwe (1998 -2003)Ben A Lopman
Department of Infectious Disease Epidemiology, Imperial College London, England
Bull World Health Organ 84:189-97. 2006..To compare alternative methods to vital registration systems for estimating adult mortality, and describe patterns of mortality in Manicaland, Zimbabwe, which has been severely affected by HIV... - Institutional risk factors for outbreaks of nosocomial gastroenteritis: survival analysis of a cohort of hospital units in South-west England, 2002-2003B A Lopman
Gastrointestinal Diseases Department, Communicable Disease Surveillance Centre, Health Protection Agency, London, UK
J Hosp Infect 60:135-43. 2005..80-0.99]. Larger care units and those with higher throughput have increased rates of gastroenteritis outbreaks. These results should guide infection control policy and support the design of hospitals with smaller care units... - Individual level injection history: a lack of association with HIV incidence in rural ZimbabweBen A Lopman
Department of Infectious Disease Epidemiology, Faculty of Medicine, Imperial College London, United Kingdom
PLoS Med 2:e37. 2005..It has recently been argued that unsafe medical injections are a major transmission route of HIV infection in the generalised epidemics of sub-Saharan Africa... - Role of widows in the heterosexual transmission of HIV in Manicaland, Zimbabwe, 1998-2003B A Lopman
Department of Infectious Disease Epidemiology, Imperial College London, London, UK
Sex Transm Infect 85:i41-8. 2009..AIDS is the main driver of young widowhood in southern Africa... - Clinical manifestation of norovirus gastroenteritis in health care settingsBen A Lopman
Gastrointestinal Diseases Division, Communicable Disease Surveillance Centre, Health Protection Agency, London, United Kingdom
Clin Infect Dis 39:318-24. 2004..This increased duration of acute illness should be considered when implementing measures to prevent transmission in hospital settings... - Age at first sex and HIV infection in rural ZimbabweTimothy B Hallett
Department of Infectious Disease Epidemiology, Imperial College London, St Mary s Campus, Norfolk Place, London, UK
Stud Fam Plann 38:1-10. 2007..This finding can be explained by their having a greater lifetime number of sexual partners than those whose first sexual experience occurs later... - Deaths from norovirus among the elderly, England and WalesJohn P Harris
Centre for Infections, GEZI, Health Protection Agency, London, UK
Emerg Infect Dis 14:1546-52. 2008..5%-18.5%) of deaths caused by noninfectious intestinal disease were associated with norovirus. An estimated 80 deaths each year in this age group may be associated with norovirus infection... - Hospital admissions due to norovirus in adult and elderly patients in EnglandThomas Haustein
Department of Clinical Microbiology, University College London Hospitals, London, England
Clin Infect Dis 49:1890-2. 2009..3% and 0.1% of emergency admissions among elderly and adult patients, respectively, at times of peak activity. These admissions pose a risk for subsequent nosocomial infection outbreaks... - Viral gastroenteritis outbreaks in Europe, 1995-2000Ben A Lopman
Gastrointestinal Diseases Division, Communicable Disease Surveillance Centre, 61 Colindale Avenue, London, England
Emerg Infect Dis 9:90-6. 2003..We review these differences within the context of the sources of outbreak surveillance information, clinical definitions, and structures of the outbreak surveillance systems... - Infection control measures for norovirus: a systematic review of outbreaks in semi-enclosed settingsJ P Harris
Gastrointestinal, Emerging and Zoonotic Diseases Department, Health Protection Agency, Centre for Infections, 61 Colindale Avenue, Colindale, London NW9 5EQ, UK
J Hosp Infect 74:1-9. 2010..Sound infection control procedures are key to controlling norovirus outbreaks but unfortunately, the present body of the published literature does not provide an evidence-base for the value of specific measures... - Behaviour change in generalised HIV epidemics: impact of reducing cross-generational sex and delaying age at sexual debutT B Hallett
Department of Infectious Disease Epidemiology, Imperial College London, St Mary s Campus, Norfolk Place, London W2 1PG, UK
Sex Transm Infect 83:i50-54. 2007..The importance of reducing cross-generational sex (young women having sex with older men) and delaying age at first sex on the spread of HIV at the population-level has been presumed but not scientifically investigated and quantified... - General outbreaks of infectious intestinal disease (IID) in hospitals, England and Wales, 1992-2000S M Meakins
Gastrointestinal Disease Division, PHLS Communicable Diseases Surveillance Centre, London, UK
J Hosp Infect 53:1-5. 2003..6%). These findings emphasize the public health importance of outbreaks of IID in hospitals, especially during the winter when pressures on hospitals are at their height... - A summertime peak of "winter vomiting disease": surveillance of noroviruses in England and Wales, 1995 to 2002Ben A Lopman
Public Health Laboratory Service Communicable Disease Surveillance Centre, Gastrointestinal Diseases Division, 61 Colindale Avenue, London NW9 5EQ, UK
BMC Public Health 3:13. 2003..Gastroenteritis caused by Norovirus infection has been described as a highly seasonal syndrome, often referred to as "winter vomiting disease"... - HIV-contaminated syringes are not evidence of transmissionBen A Lopman
AIDS 20:1905. 2006