Is Pneumonia Contagious? Pneumonia is a serious lung infection that causes inflammation of the air sacs in one or both lungs. Types of Pneumonia Bacterial Pneumonia: Caused by Streptococcus pneumoniae, Mycoplasma pneumoniae, etc.Viral Pneumonia: Caused...

Is Bronchitis Contagious? Bronchitis is a respiratory condition that occurs when the bronchial tubes, which carry air to and from the lungs, become inflamed. It can be classified into acute and chronic bronchitis, with acute...