Master Common Causes of Pneumonia: Children (4 Weeks - 18 Years) with Picmonic for Physician Assistant

Respiratory syncytial virus is in the paramyxovirus family of enveloped, single stranded, negative sense, linear, nonsegmented RNA viruses that have a helical capsid. Although usually mild, RSV can cause more serious infections in premature infants, which may present with high fever, rapid breathing.

Also known as walking pneumonia, the bacterium Mycoplasma causes an atypical pneumonia. Unlike typical pneumonia, this form lasts longer, lacks sputum and has extra-pulmonary symptoms. There are frequent outbreaks of Mycoplasma pneumonia in people living in close quarters, such as military recruits and in prisons. This bacteria is one of the common causes of pneumonia in individuals ages 4 weeks to 65 years.

Spread through aerosols, this bacteria causing an atypical pneumonia. Patients present with a short lived fever, and cough with little sputum production that may persist for several weeks.

Infants who contract serovars D-K of the pathogen when passing through the birth canal may develop pneumonia with a characteristic staccato cough. The D-K serovars also cause neonatal conjunctivitis.

This gram positive,lancet shaped, alpha hemolytic, optochin sensitive, bile soluble, diplococci presents as a typical pneumonia except for the identifying symptom of rusty colored sputum. It is one of the common causes of pneumonia in everyone >4 weeks of age.