SEROSURVEY OF CHLAMYDIA-PSITTACI INFECTIONS AMONG LIVESTOCK AND HUMAN-BEINGS EMPLOYING COMPLEMENT-FIXATION TEST

To assess the sero-positivity for Chlamydia psittaci infections during 1992-96, a total of 3286 serum samples from sheep, goats, cattle, pig s, buffaloes, rabbits and human beings were tested by complement fixat ion test. An overall percentage of sere-positivity in sheep and goats was 18.50 and 42.86, respectively, while that of sero-reactivity was 2 9.39 and 59.58. Among the sheep imported from U.S.A, the first consign ment of 195 sheep was found to be sere-negative, whereas, 440 sheep fr om other consignments showed sere-positivity of 12.04 per cent. The se ro-positivity for Chlamydia psittaci infection in culled pigs (36.36) was higher than pigs at organized farms (21.27%). The antibody titre o f a human serum was not enough to consider it as positive for chlamydi osis while the remaining serum samples were negative.