You suspect an ear infection . When your child doesn't feel well, the cause could be a virus or bacterial infection . Let's look at the differences. Viruses are tiny and can cause infection. The common cold and chicken-pox are examples of viral infections .
Bacteria are larger than viruses and can also cause infection.
Some coughs and ear infections are caused by bacteria. Many viruses are spread through body fluids. Some travel through the air. Most viral infections just have to run their course. Most common bacterial infections require treatment with antibiotics.