From: The use of multiplex PCR for the detection of atypical pathogens in Egyptian children with CAP: a high rate of Bordetella pertussis in early infancy
Pathogen
Age groups (months)
≤ 4 months
> 4 months ≤ 59 months
> 59 months
P value
n = 104
n = 272
n = 24
Bordetella pertussis
8 (7.79%)
0 (0%)
≤ 0.001
Mycoplasma pneumoniae
4 (1.47%)
0.3