Final answer:
Infants are most likely to contract viral pneumonia due to RSV, and treatment is supportive, focusing on relieving symptoms as no specific antiviral therapies are available for RSV.
Step-by-step explanation:
Infants, particularly those under the age of 2 years, are most likely to contract viral pneumonia due to infections like Respiratory syncytial virus (RSV). This is because their immune systems are not fully developed, making them more susceptible to such infections. While RSV infections in adults typically resolve like a common cold, they can be severe and even life-threatening in infants.
There are no specific antiviral therapies or vaccines available for viral pneumonia caused by RSV. Treatment is largely supportive and focuses on relieving symptoms and ensuring adequate oxygenation and hydration. In severe cases, hospitalization may be required for supportive care, which may include supplemental oxygen, intravenous fluids, and sometimes mechanical ventilation.