Answer:
Infected birds shed avian influenza virus in their saliva, mucous and feces. Human infections with bird flu viruses can happen when enough virus gets into a person's eyes, nose or mouth, or is inhaled.
Answer:
Not sure what the author is but a brand used a lot is HMH
they make a variety of textbooks (literature, history, science, etc)
Explanation:
Hope this helps! :)