The seroprevalence of Chlamydia pneumoniae and Mycoplasma pneumoniae in hantavirus seronegative patients, who had symptoms and signs compatible with pneumonia was established. For this purpose we used the indirect fluorescent antibody test. Titers <FONT FACE=Symbol>³</FONT> 1:16 for C. pneumoniae and M. pneumoniae were found in 8.6% and 17.1% of the serum, respectively, showing evidence of recent or current infection.
antibodies; Chlamydia pneumoniae; Mycoplasma pneumoniae; indirect fluorescent antibody test
