<prompt> Pneumatoceles often develop in children after pneumonia due to the following organismKlebsiellaStreptococcusStaphylococcus aureusHaemophilus influenzae  <response>: Radiological signs are extensive in a form of massive consolidation.E.coli,Klebsiella ,staphylococcus pneumonia have pneumatoceles. Ref : Essential pediatrics,O.P.Ghai,7 th edition,pgno:355 