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[Chlamydiosis in animals]
Abstract
In this brief review, the authors summarize the state of knowledge on chlamydial infections in birds and mammals, in particular those occurring in domestic animals. Chlamydia psittaci is responsible for a variety of syndromes in veterinary medicine, some of which may be of great interest in comparative pathology (polyarthritis, conjunctivitis, . . .). The frequency of latent infections, the difficulties involved in the diagnosis and control of chlamydial infections and the transmissibility of C. psittaci to man pose a number of problems for the veterinarian, both in terms of animal medicine and in terms of his role in public hygiene.
... Swine chlamydiosis is Chlamydia psittaci-caused contagious disease characterizing abortion, still birth and death of a number of newborn piglets in perinatal period (Milon et al., 1983;Bortnichuk, 1989;Qiu et al., 1998Qiu et al., , 1999Qiu et al., , 2000Sachse et al., 2004). ...
The aim of this study was to investigate the epidemiology of chlamydiosis in free-ranging asymptomatic and diarrhoeic sheep and goats in Egypt. Faecal swabs were examined for the presence of Chlamydiae by culture in Vero cells and chick embryos, and staining with Giménez, direct fluorescein-conjugated monoclonal antibodies, and immunoperoxidase. Specific chlamydial DNA was identified by amplification of the omp2 gene. The asymptomatic goats were 50% positive for the presence of the omp2 gene of the family Chlamydiaceae, and all isolates were Chlamydophila psittaci. The percentage of diseased goats in which Chlamydiaceae were identified was 16.2%, and all were positive for Cp. psittaci. Of the asymptomatic sheep, 6.7% were positive for the omp2 gene of the family Chlamydiaceae, and again all were positive for Cp. psittaci. In contrast, 42.9% of the samples that were collected from the diseased sheep were positive for Chlamydiaceae, of which 25.7% were Cp. psittaci and 4.8% Cp. pecorum.
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