PULLMAN, Wash. – The quick, little sting of a vaccine shot can provide us with some big protection from germs that cause disease.
One kind of germ is a virus. Viruses are so small that you can’t see them even with a normal microscope. But if you use a more powerful electron microscope, you’d see each one wears a kind of coat with bits and knobs that stick out in different directions.
“Just like every person’s face looks different, every virus coat looks different,” said my friend Felix Lankester, a veterinarian at Washington State University.
Read all of this answer from Dr. Universe at https://askdruniverse.wsu.edu/2016/12/05/vaccines-how-do-they-work/.
A service of Washington State University, Ask Dr. Universe answers some of the most interesting, tough and smart questions from curious kids all around the world.