Most common cause of viral pneumonia in infant is-

Ans. is 'a' i.e., Influenza virus * The peak attack for viral pneumonia is between the age of 2nd and 3rd years and decrease thereafter.* Viruses causing pneumonia are -# RSV - Most common# Influenza - 2nd most common# Adenovirus# Parainfluenza virus# Rhinovirus * Most common bacterial cause of pediatric pneumonia is streptococus pneumoniae (pneumococcus). Bacteria causing atypical pneumonia commonly are mycoplasma and chlamydia.