Add Yahoo as a preferred source to see more of our stories on Google. Aaaaa-choo! While your first thought may be to say “Gesundheit!” your second might be to ask: “Where did that sneeze come from?” ...

Ever wonder how it's so easy to get sick while flying, but not necessarily every other crowded venue, like a movie theater? This video simulation below shows how germs are spread when a passenger ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Aaaaa-choo! While your first thought may be to ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Meg Sorg, Purdue University (THE CONVERSATION) Advertisement Article continues below ...