The process of infection can be broken down into stages, each of which can be blocked by different defense mechanisms. In the first stage, a new host is exposed to infectious particles shed by an infected individual. The number, route, mode of transmission, and stability of an infectious agent outside the host determines its infectivity. Some pathogens, such as anthrax, are spread by spores that are highly resistant to heat and drying, while others, such as the human immunodeficiency virus (HIV), are spread only by the exchange of bodily fluids or tissues because they are unable to survive as infectious agents outside the body.
THE ANSWER IS D : EPIDEMIOLOGIST GOOD LUCK AND HOPE IT HELPS U
My life. In school. Forever alone until after 20 years.
keep her as comfy as possible till her time comes
Answer:
but which one are you referring to
Explanation:
