Question

5. What is bronchitis? How is it caused? ​

Answer 1

Answer:

Bronchitis is usually caused by a virus. Less often, it's caused by a bacteria. In most cases, bronchitis is caused by the same viruses that cause the common cold or flu. The virus is contained in the millions of tiny droplets that come out of the nose and mouth when someone coughs or sneezes.

Answer 2

Answer:

Bronchitis is usually caused by a virus. Less often, it's caused by a bacteria. In most cases, bronchitis is caused by the same viruses that cause the common cold or flu. The virus is contained in the millions of tiny droplets that come out of the nose and mouth when someone coughs or