infectious

"This kind of research is important for understanding how we can select the optimal bacteriophages for therapies, and to understand the differences in infectious behavior we see in the lab," Dr. Hodgkinson-Bean says.

As he said it, Alcaraz flashed the infectious smile which has helped endear him to crowds globally.

As a global health epidemiologist who studies the spread of infectious diseases, this change in status does not surprise me.

The infectious laugh that Murphy used in his films and stand-up is gone, replaced by a deeper, more guttural laugh.

The bird flu virus infecting farm flocks across the UK could be the most infectious yet, the government's former top expert in avian virology has warned.