Chlamydia Abortus Prevalence and Risk Factors in Ovine Enzootic Abortion
Recent research has shed light on the prevalence and risk factors associated with Chlamydia abortus in sheep populations. A cross-sectional sero-epidemiological study conducted in the Layyah district of Pakistani Punjab found a significant association between Chlamydia abortus and ovine enzootic abortion. The study's findings have important implications for public health and livestock management.
Key Takeaways:
- The seroprevalence of Chlamydia abortus in ewe flocks was found to be 25.8% at the flock level and 7.9% at the individual level.
- The highest seroprevalence was recorded in the Layyah Tehsil (58.7% flock-level and 18.5% individual-level) followed by Karor Lal Esan (17.4% flock-level and 4.7% individual-level).
- The study found a significant association between the history of abortions and seropositivity, with an odds ratio of 11.0.
- The study recommends further investigations and extension efforts to consider a control strategy in affected flocks.
- The research suggests that Chlamydia abortus poses a zoonotic public health threat and causes significant economic losses in sheep farming.
Statistics:
- 184 serum samples were tested from 50 privately owned sheep flocks located across three sub-districts (Tehsils).
- The seroprevalence of Chlamydia abortus ranged from 25.8% to 58.7% at the flock level.
- The individual-based true seroprevalence was found to be 7.9% (CI 4.4-12.6).
- The study found that 11.0 (p = 0.021) fold increase in the risk of seropositivity associated with a history of abortions.
Sources:
- Prevalence and risk factors of ovine enzootic abortion caused by Chlamydia abortus in the Layyah district of Punjab, Pakistan. BMC Veterinary Research, 2025;21(1):594.
- Bmc, Campus, 4 Crinan St, London N1 9XW, England. (BioMed Central - www.biomedcentral.com/; BMC Veterinary Research - www.biomedcentral.com/bmcvetres/)
- Laeeq Akbar Lodhi, Independent Researcher, Faisalabad, 38000, Pakistan.