Pneumonia is an infection in one or both lungs that can be caused by bacteria, viruses, or fungi. Transmitted via person-to-person contact with respiratory secretions, such as saliva or mucus, Streptococcus pneumoniae, or pneumococcus, are a...
Pneumonia is an infection in one or both lungs that can be caused by bacteria, viruses, or fungi. Transmitted via person-to-person contact with respiratory secretions, such as saliva or mucus, Streptococcus pneumoniae, or pneumococcus, are a...
Pneumonia is an infection in one...