Viruses go around in the air and bacteria you have to touch
Answer:
Why wouldn't they. but why do u breathe out of your mouth
Due to divergent evolution, some species may have similar anatomical structures with the same purposes. The species while not exactly similar are close enough to allow the interbreeding of the two, such as the horse and mule
Answer:
Explanation:
Vaccinations need a large amount of the population to work effectively. With people not getting vaccinated they are putting the majority of the people at risk of an outbreak of that.