Abstract
We determined the serovar distribution and genetic variability of the omp1 gene of C. trachomatis in nasopharyngeal aspirates from consecutive infants with pneumonia. C. trachomatis was detected by PCR in 17/94 (18.1%) specimens. Serovar E (47.1%) was the most frequent, followed by serovars F (17.6%), Ja (17.6%), D (11.8%), and G (5.9%). Nucleotide sequence analysis showed polymorphism of Omp1.