| an outbreak of hepatitis a associated with swimming in a public pool. | a multistate outbreak of hepatitis a was traced to a campground in louisiana. among 822 campers during one weekend, 20 developed hepatitis a. case-patients ranged in age from 4 to 36 years; the highest attack rate (6.4%) was for children aged 5-9 years. a case-control study revealed that case-patients were more likely than controls to have swum in a public swimming pool on saturday afternoon (19/19 vs. 26/38; odds ratio [or], undefined; lower 95% confidence limit, 1.7). case-patients were more l ... | 1992 | 1552192 |
| a multistate, foodborne outbreak of hepatitis a. national hepatitis a investigation team. | we investigated a large, foodborne outbreak of hepatitis a that occurred in february and march 1997 in michigan and then extended the investigation to determine whether it was related to sporadic cases reported in other states among persons who had consumed frozen strawberries, the food suspected of causing the outbreak. | 1999 | 10029643 |