Viral pneumonia causes

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Viral pneumonia is more likely to occur in young children and older adults, because their bodies have a harder time fighting off the virus. Viral pneumonia is most often caused by one of several viruses:

• Adenovirus
• Influenza
• Parainfluenza
• Respiratory syncytial virus

People who are at risk for more serious viral pneumonia often have a weakened immune system, including:

• Adult HIV/AIDS patients
• Babies who are born too early
• Children with heart and lung problems
• People receiving chemotherapy for cancer, or other medications that weaken the immune system.
• Organ transplant recipients

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