Viruses often can spread bacteria through what?
the skin microscopes contamination covering washing alveoli droppings coating
A B C D E F G H
Infected birds spread the bacteria in their droppings.
Viruses often can spread bacteria through droppings
Viruses often can spread bacteria through what? (A) the skin (B) microscopes (C) contamination (D) covering (E) washing (F) alveoli (G) droppings (H) coating