Problem:
Below are two quotes from the CDC about Hantavirus:
"Researchers believe that people may be able to get the virus if they touch something that has been contaminated with rodent urine, droppings, or saliva, and then touch their nose or mouth."
and:
"You cannot get the virus from touching or kissing a person who has HPS."
This is hard to believe. So, since human saliva is not a problem, can you be contaminated by human urine or human droppings? The only way for me to interpret this logically is to say that this virus lives at the end of the digestive tract (for both rodents and humans) and people can be kissed because they have much better hygiene than rodents. Is there a better interpretation?
Question: why Hantavirus leaves the mouth (moving to the end of the digestive tract) of an infected animal, but influenza does not?
Please provide some reasons.