The World Health Organization is opening up the definition of airborne pathogens – such as Covid-19, influenza and measles – to include when respiratory droplets spread through the air and ...

They could be caused by a pathogen or by something else. Other diagnostic tests are required in order to be sure it is being caused by a pathogen, and if so by which pathogen.

Here's what you need to know about hantavirus, the rodent-borne pathogen blamed for the death of Betsy Arakawa, the wife of actor Gene Hackman. Hantavirus pulmonary syndrome has killed at least 34 ...

A vaccine works by generating an immune response in the body against some kind of pathogen—a virus or bacteria or some other agent that causes disease. Normally when a pathogen invades the body ...