最近在一个275,000人口的西德城镇中的一次甲型肝炎暴发流行,部分被归因于一家肉店所出售的受污染的冷肉。1980年12月所登记的28例传染源可能来自餐馆的食品,这些病例中的大多数在发病前数周曾在那里去过。因此调查了餐馆的工作人员等,检测了 A recent hepatitis A outbreak in a 275,000-population West German town was partly attributed to contaminated cold meat being sold at a butcher’s shop. The 28 infectious agents registered in December 1980 may have come from food in restaurants, and most of these cases have been there for weeks before onset. So surveyed the restaurant staff, etc., tested