Clarence C Tam

Summary

Affiliation: London School of Hygiene and Tropical Medicine
Country: UK

Publications

  1. pmc The second study of infectious intestinal disease (IID2): increased rates of recurrent diarrhoea in individuals aged 65 years and above
    Clarence C Tam
    Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
    BMC Public Health 13:739. 2013
  2. pmc Methods for determining disease burden and calibrating national surveillance data in the United Kingdom: the second study of infectious intestinal disease in the community (IID2 study)
    Sarah J O'Brien
    School of Translational Medicine, University of Manchester, Manchester Academic Health Science Centre, Stopford Building, Oxford Road, Manchester, M13 9PL, UK
    BMC Med Res Methodol 10:39. 2010
  3. pmc Effect of reminders on mitigating participation bias in a case-control study
    Clarence C Tam
    Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
    BMC Med Res Methodol 11:33. 2011
  4. pmc Chicken consumption and use of acid-suppressing medications as risk factors for Campylobacter enteritis, England
    Clarence C Tam
    Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
    Emerg Infect Dis 15:1402-8. 2009
  5. doi request reprint Fortune and foreigners: toward an epidemiology of food (borne illness)
    Clarence C Tam
    Infectious Disease Epidemiology Unit, Department of Epidemiology and Public Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
    Epidemiology 19:291-3. 2008
  6. pmc Guillain-Barré syndrome and preceding infection with campylobacter, influenza and Epstein-Barr virus in the general practice research database
    Clarence C Tam
    Infectious Disease Epidemiology Unit, Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
    PLoS ONE 2:e344. 2007
  7. pmc Influenza, Campylobacter and Mycoplasma infections, and hospital admissions for Guillain-Barré syndrome, England
    Clarence C Tam
    London School of Hygiene and Tropical Medicine, London, United Kingdom
    Emerg Infect Dis 12:1880-7. 2006
  8. pmc Temperature dependence of reported Campylobacter infection in England, 1989-1999
    C C Tam
    Environmental and Enteric Diseases Department, Communicable Disease Surveillance Centre, Health Protection Agency Centre for Infections, London, UK
    Epidemiol Infect 134:119-25. 2006
  9. ncbi request reprint Incidence of Guillain-Barré syndrome among patients with Campylobacter infection: a general practice research database study
    Clarence C Tam
    Infectious Disease Epidemiology Unit, Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
    J Infect Dis 194:95-7. 2006
  10. pmc Longitudinal study of infectious intestinal disease in the UK (IID2 study): incidence in the community and presenting to general practice
    Clarence C Tam
    Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
    Gut 61:69-77. 2012

Detail Information

Publications20

  1. pmc The second study of infectious intestinal disease (IID2): increased rates of recurrent diarrhoea in individuals aged 65 years and above
    Clarence C Tam
    Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
    BMC Public Health 13:739. 2013
    ..In the UK, there are an estimated 17 million IID cases annually, of which 6 million are caused by the 12 most common pathogens. Host factors that influence risk of IID are not well understood...
  2. pmc Methods for determining disease burden and calibrating national surveillance data in the United Kingdom: the second study of infectious intestinal disease in the community (IID2 study)
    Sarah J O'Brien
    School of Translational Medicine, University of Manchester, Manchester Academic Health Science Centre, Stopford Building, Oxford Road, Manchester, M13 9PL, UK
    BMC Med Res Methodol 10:39. 2010
    ..We will also outline methods to determine whether or not incidence has declined since the mid-1990s...
  3. pmc Effect of reminders on mitigating participation bias in a case-control study
    Clarence C Tam
    Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
    BMC Med Res Methodol 11:33. 2011
    ..We present an analysis of data from a case-control study of Campylobacter enteritis in England to assess the usefulness of a two-reminder strategy for control recruitment...
  4. pmc Chicken consumption and use of acid-suppressing medications as risk factors for Campylobacter enteritis, England
    Clarence C Tam
    Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
    Emerg Infect Dis 15:1402-8. 2009
    ..Better characterization of immune correlates for Campylobacter infection is necessary to assess the relative importance of immunity and behavioral factors in determining risk...
  5. doi request reprint Fortune and foreigners: toward an epidemiology of food (borne illness)
    Clarence C Tam
    Infectious Disease Epidemiology Unit, Department of Epidemiology and Public Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
    Epidemiology 19:291-3. 2008
    ..Only then can we correctly interpret studies of incidence and risk factors, and their implications for control of foodborne illness...
  6. pmc Guillain-Barré syndrome and preceding infection with campylobacter, influenza and Epstein-Barr virus in the general practice research database
    Clarence C Tam
    Infectious Disease Epidemiology Unit, Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
    PLoS ONE 2:e344. 2007
    ..A number of infectious agents have previously been suggested as risk factors for the development of Guillain-Barré syndrome (GBS), but robust epidemiologic evidence for these associations is lacking...
  7. pmc Influenza, Campylobacter and Mycoplasma infections, and hospital admissions for Guillain-Barré syndrome, England
    Clarence C Tam
    London School of Hygiene and Tropical Medicine, London, United Kingdom
    Emerg Infect Dis 12:1880-7. 2006
    ..Further studies should estimate the relative contribution of different pathogens to GBS incidence, overall and by age group, and determine whether influenza is a real trigger for GBS or a marker for influenza vaccination...
  8. pmc Temperature dependence of reported Campylobacter infection in England, 1989-1999
    C C Tam
    Environmental and Enteric Diseases Department, Communicable Disease Surveillance Centre, Health Protection Agency Centre for Infections, London, UK
    Epidemiol Infect 134:119-25. 2006
    ..Our findings provide evidence that ambient temperature influences Campylobacter incidence, and suggest that its effect is likely to be indirect, acting through other intermediate pathways...
  9. ncbi request reprint Incidence of Guillain-Barré syndrome among patients with Campylobacter infection: a general practice research database study
    Clarence C Tam
    Infectious Disease Epidemiology Unit, Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
    J Infect Dis 194:95-7. 2006
    ..17/1000 person-years, a rate 77 times greater than that in the general population. The probability that an individual who develops Campylobacter enteritis will also develop GBS during the subsequent 2-month period is <2/10,000...
  10. pmc Longitudinal study of infectious intestinal disease in the UK (IID2 study): incidence in the community and presenting to general practice
    Clarence C Tam
    Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK
    Gut 61:69-77. 2012
    ..To estimate, overall and by organism, the incidence of infectious intestinal disease (IID) in the community, presenting to general practice (GP) and reported to national surveillance...
  11. doi request reprint Community incidence of norovirus-associated infectious intestinal disease in England: improved estimates using viral load for norovirus diagnosis
    Gemma Phillips
    Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, United Kingdom
    Am J Epidemiol 171:1014-22. 2010
    ..Norovirus is the most common cause of IID in the community in England and is responsible for a similar number of pediatric primary care consultations as rotavirus...
  12. doi request reprint Changes in causes of acute gastroenteritis in the United Kingdom over 15 years: microbiologic findings from 2 prospective, population-based studies of infectious intestinal disease
    Clarence C Tam
    Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
    Clin Infect Dis 54:1275-86. 2012
    ..We examined changes in etiology and diagnostic yield of IID cases over 15 years...
  13. doi request reprint Asymptomatic rotavirus infections in England: prevalence, characteristics, and risk factors
    Gemma Phillips
    Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, United Kingdom
    Am J Epidemiol 171:1023-30. 2010
    ..More work is needed to understand the role of asymptomatic infections in transmission leading to rotavirus disease...
  14. doi request reprint Diagnosing rotavirus A associated IID: Using ELISA to identify a cut-off for real time RT-PCR
    Gemma Phillips
    Department of Gastrointestinal, Emerging and Zoonotic Infections, Health Protection Agency Centre for Infections, London, UK
    J Clin Virol 44:242-5. 2009
    ..If RT-PCR is not well correlated with disease, rotavirus A may not always be the cause of illness in RT-PCR positive patients with infectious intestinal disease (IID)...
  15. ncbi request reprint Guillain-Barré syndrome associated with Campylobacter jejuni infection in England, 2000-2001
    Clarence C Tam
    Gastrointestinal Diseases Division, Communicable Disease Surveillance Centre, London School of Hygiene and Tropical Medicine, London, United Kingdom
    Clin Infect Dis 37:307-10. 2003
    ..jejuni. We estimate that, between 1 April 2000 and 31 March 2001, symptomatic C. jejuni infection was responsible for 157 cases of GBS, constituting approximately 15% of all GBS cases in England...
  16. doi request reprint Characterization of water and wildlife strains as a subgroup of Campylobacter jejuni using DNA microarrays
    Richard A Stabler
    London School of Hygiene and Tropical Medicine, London, UK
    Environ Microbiol 15:2371-83. 2013
    ..Our findings provide further evidence that WW C. jejuni subtypes show niche adaptation and may be important in causing human infection. ..
  17. ncbi request reprint The study of infectious intestinal disease in England: what risk factors for presentation to general practice tell us about potential for selection bias in case-control studies of reported cases of diarrhoea
    Clarence C Tam
    Gastrointestinal Diseases Division, Communicable Disease Surveillance Centre, 61 Colindale Avenue, London NW9 5EQ, UK
    Int J Epidemiol 32:99-105. 2003
    ..Factors affecting a person's likelihood of presentation will thus affect the characteristics of reported cases...
  18. pmc Diagnosing norovirus-associated infectious intestinal disease using viral load
    Gemma Phillips
    Department of Gastrointestinal, Emerging and Zoonotic Infections, Health Protection Agency Centre for Infections, 61 Colindale Avenue, London, UK
    BMC Infect Dis 9:63. 2009
    ..The aim of this study was to investigate how faecal viral load can be used to determine when norovirus is the most likely cause of illness in an IID case...
  19. pmc The association between drinking water turbidity and gastrointestinal illness: a systematic review
    Andrea G Mann
    Infectious Disease Epidemiology Unit, Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, UK
    BMC Public Health 7:256. 2007
    ..Studies suggest that routine variations in public drinking water turbidity may be associated with endemic gastrointestinal illness. We systematically reviewed the literature on this topic...
  20. ncbi request reprint Campylobacter species: don't put all your eggs in one chicken
    Clarence C Tam
    Clin Infect Dis 34:719-20. 2002