1. Many of the monkeys were used in infectious disease research.

2. When doctors come to work despite having infectious diseases, they risk infecting their patients or their colleagues.

3. They evaluate any travelers with signs of dangerous infectious diseases, and isolate them when necessary.

4. The CDC typically notifies an airline when it learns that an infectious person traveled on that carrier.

5. Public health experts, infectious disease doctors, patients and advocates have all been warning about the problem for two decades.

6. They are a very quick and easy way for bacteria to acquire resistance genes and are very worrying to infectious disease experts.

7. But his wonderful, infectious, even innocent spirit ultimately won him more fans than foes.