| use of hygiene advice and active immunisation to control an outbreak of hepatitis a. | a community outbreak of at least 16 cases of hepatitis a is described. salivary antibody testing of 126 children within a school in that community showed only one case of undiagnosed previous infection. three other children had received hepatitis a vaccine previously, and this was reflected in their antibody titres. for the schools serving the community control measures included advice on good hygiene (supervised handwashing and additional cleaning in the schools). all close contacts of cases (h ... | 2001 | 11732353 |