1. It is transmitted between animals and humans by the bite of infected fleas, direct contact, inhalation and rarely, ingestion of infective materials. 它通过受感染跳蚤的咬伤、直接接触、吸入和极少摄入传染物在动物与人之间传播。
2. The total infective rate of cryptosporidium parvum was low in this area. 该地区小隐孢子虫的总感染率很低。
3. Symptoms appear 3—14 days after the infective bite. 被具传染性的蚊虫叮咬之后3-14天出现症状。
4. Conclusion MRS strains have become major infective strains. 结论MRS菌株已经成为主要的感染菌。
5. There are two main types of conjunctivitis allergic and infective . 主要有两种类型的结膜炎过敏性和传染性。