Featured in diseases

An excerpt from the famous germ theory of disease lecture
A child playing with a bear.
An aedes aegypti mosquito.
A fox on a street--it's not the rabid one.
Female house sparrow and brown-headed cowbird, both potential vectors for bacteria that cause food-borne illnesses, feeding on birdseed on the ground
Plague Doctor
Adult deer tick on white
Tall grassy area in New York with a shed
social distancing