1.Crowcroft, NS, et al. Guidelines for the control of hepatitis A virus infection. Communicable Disease and Public Health 2001; 4: 213–227.
3.Payne, L, Coulombier, D. Hepatitis A in the European Union: responding to challenges related to new epidemiological patterns. Eurosurveillance 2009; 14: 19101.
4.de Paula, VS, et al. Mixed infection of a childcare provider with hepatitis A virus isolates from subgenotypes IA and IB revealed by heteroduplex mobility assay. Journal of Virological Methods 2003; 107: 223–228.
5.Hauri, AM, et al. Active immunisation during an outbreak of hepatitis A in a German day-care centre. Vaccine 2006; 24: 5684–5689.
6.Leoni, E, et al. An outbreak of intrafamiliar hepatitis A associated with clam consumption: epidemic transmission to a school community. European Journal of Epidemiology 1998; 14: 187–192.
7.Stene-Johansen, K, et al. An outbreak of hepatitis A among homosexuals linked to a family outbreak. Epidemiology and Infection 2002; 129: 113–117.
8.Tortajada, C, et al. Outbreak of hepatitis A among men who have sex with men in Barcelona, Spain, September 2008–March 2009. Eurosurveillance 2009; 14: 19175.
9.Grinde, B, et al. Characterisation of an epidemic strain of hepatitis A virus involving intravenous drug abusers – infection by needle sharing? Journal of Medical Virology 1997; 53: 69–75.
10.Tjon, GM, et al. An outbreak of hepatitis A among homeless drug users in Rotterdam, The Netherlands. Journal of Medical Virology 2005; 77: 360–366.
11.O'Donovan, D, et al. An outbreak of hepatitis A amongst injecting drug users. Epidemiology and Infection 2001; 127: 469–473.
12.Skidmore, S, Parry, JV, Nottage, P. An investigation of the potential risk of an HAV outbreak in a prison population following the introduction of cases from a community outbreak. Communicable Disease and Public Health 2001; 4: 133–135.
13.Perrett, K, et al. Changing epidemiology of hepatitis A: should we be doing more to vaccinate injecting drug users? Communicable Disease and Public Health 2003; 6: 97–100.
14.Sundkvist, T, et al. Outbreak of hepatitis A infection among intravenous drug users in Suffolk and suspected risk factors. Communicable Disease and Public Health 2003; 6: 101–105.
15.Syed, NA, et al. Outbreak of hepatitis A in the injecting drug user and homeless populations in Bristol: control by a targeted vaccination programme and possible parenteral transmission. European Journal of Gastroenterology and Hepatology 2003; 15: 901–906.
16.Gilbert, RL, et al. Hepatitis A vaccination – a prison-based solution for a community-based outbreak? Communicable Disease and Public Health 2004; 7: 389–393.
17.Ngui, SL, et al. Hepatitis A Outbreaks Investigation Network. Outbreaks of hepatitis A in England and Wales associated with two co-circulating hepatitis A virus strains. Journal of Medical Virology 2008; 80: 1181–1188.
18.Roberts, RJ, Palmer, SR. Exposure to school children as a risk factor in a community outbreak of hepatitis A in young adults: a case control study. Epidemiology and Infection 2006; 134: 803–807.
19.Health Protection Agency. Outbreak of hepatitis A in men who have sex with men in south east London. CDR Weekly 2004; 14.
20.Taylor-Robinson, DC, et al. Exploration of cost effectiveness of active vaccination in the control of a school outbreak of hepatitis A in a deprived community in the United Kingdom. Eurosurveillance 2007; 12: E5–6.
21.Department of Health. Immunisation Against Infectious Disease, 3rd edn. United Kingdom: Stationery Office, 2006.
22.Nenonen, NP, et al. Detection of hepatitis A virus genotype IB variants in clams from Maputo Bay, Mozambique. Journal of Medical Virology 2006; 78: 896–905.
23.Mbithi, JN, et al. Survival of hepatitis A virus on human hands and its transfer on contact with animate and inanimate surfaces. Journal of Clinical Microbiology 1992; 30: 757–763.
24.Staes, CJ, et al. Sources of infection among persons with acute hepatitis A and no identified risk factors during a sustained community-wide outbreak. Pediatrics 2000; 106: E54.
25.Bower, WA, et al. Duration of viremia in hepatitis A virus infection. Journal of Infectious Disease 2000; 182: 12–17.
26.Lemon, SM. The natural history of hepatitis A: the potential for transmission by transfusion of blood or blood products. Vox Sanguinis 1994; 67: S19–S23.
27.Mackiewicz, V, et al. Detection of hepatitis A virus RNA in saliva. Journal of Clinical Microbiology 2004; 42: 4329–4331.
28.de Paula, VS, et al. Detection of hepatitis A virus RNA in serum during the window period of infection. Journal of Clinical Virology 2004; 29: 254–259.
29.Rajaratnam, G, et al. An outbreak of hepatitis A: school toilets as a source of transmission. Journal of Public Health Medicine 1992; 14: 72–77.
30.Schwarz, NG, et al. A food-borne outbreak of hepatitis A virus (HAV) infection in a secondary school in Upper Normandy, France, in November 2006. Eurosurveillance 2008; 13: 18885.
31.Butot, S, Putallaz, T, Sánchez, G. Effects of sanitation, freezing and frozen storage on enteric viruses in berries and herbs. International Journal of Food Microbiology 2008; 126: 30–35.
32.McMahon, BJ, et al. A program to control an outbreak of hepatitis A in Alaska by using an inactivated hepatitis A vaccine. Archives of Pediatrics and Adolescent Medicine 1996; 150: 733–739.
33.Elliott, JH, Kunze, M, Torresi, J. Hepatitis A vaccine failure. Lancet 2002; 359: 1948–1949.
34.Bonanni, P, et al. Primary Hepatitis A vaccination failure is a rare although possible event: results of a retrospective study. Vaccine 2006; 24: 6053–6057.
35.Robertson, BH, et al. Genetic relatedness of heaptitis A virus isolates during a community-wide outbreak. Journal of Medical Virology 2000; 62; 144–150.
36.Polish, LB, et al. Excretion of hepatitis A virus (HAV) in adults: comparison of immunologic and molecular detection methods and relationship between HAV positivity and infectivity in tamarins. Journal of Clinical Microbiology 1999; 37: 3615–3617.
37.Ang, LH. Outbreak of hepatitis A in a special needs school in Kent: 1999. Communicable Disease and Public Health 2000; 3: 139–140.
38.Bell, BP, et al. Immunogenicity of an inactivated hepatitis A vaccine in infants and young children. Pediatric Infectious Disease Journal 2007; 26: 116–122.
39.Gil, A, et al. Detection of antibodies against hepatitis A in blood spots dried on filter paper. Is this a reliable method for epidemiological studies? Epidemiology and Infection 1997; 118: 189–191.
40.Parry, JV, et al. Diagnosis of hepatitis A and B by testing saliva. Journal of Medical Virology 1989; 28: 255–260.