Pediatric influenza virus pneumonia

This disease is a severe lung infection caused by influenza (hereinafter referred to as influenza) virus. Influenza virus pneumonia is a severe interstitial pneumonia that sometimes invades the central nervous system or circulatory system. Infants and young children, concentrated in the age range of 6 months to 2 years, are more common in the cold winter and spring seasons. Influenza B virus pneumonia is generally milder than that caused by type A virus.