Usually precipitated by viral infection (influenza A, influenza B, parainfluenza II, and Mycoplasma pneumoniae)
usually precipitated by viral infection (influenza a, influenza b, parainfluenza ii, and mycoplasma pneumoniae)
Usually precipitated by viral infection (influenza A, influenza B, parainfluenza II, and Mycoplasma pneumoniae)
usually precipitated by viral infection (influenza a, influenza b, parainfluenza ii, and mycoplasma pneumoniae)