SPOKANE, Wash. – Stomachaches happen for lots of reasons, but they can often be traced back to tiny invaders in the human body: germs.
That’s what I learned from my friends Lisa Woodard and Brenda Bray, pharmacy researchers at Washington State University. Germs like viruses and bacteria are so small you’d need a microscope to see them. Still, they can cause big trouble.
There are about 320,000 different types of viruses that affect mammals. Some scientists have estimated there are nearly 10 million more viruses on Earth than there are stars in the known universe.
Read all of the answer from Dr. Universe here.
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