Department of Animal Medicine (Infectious Diseases), Faculty of Veterinary Medicine, Benha University, Toukh, 13736, Egypt.
Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, Al- Ahsa, 31982, Saudi Arabia.
Trop Anim Health Prod. 2024 Jun 12;56(5):188. doi: 10.1007/s11250-024-04032-9.
Chlamydia abortus (C. abortus) is a gram-negative, obligate intracellular bacterium that causes major public health problems in human and reproductive problems in animals. The information about the epidemiology of this pathogen among camels in Egypt is very rare. This study aimed to evaluate the existence of antibodies against C. abortus in camels and assess the related risk factors for infection. A total of 410 blood samples were collected from camels from three Egyptian governorates and examined using commercial ELISA kit. The overall seroprevalence rate was 6.6% and the higher C. abortus seropositivity rate was found in Giza governorate. Location, sex and infestation by ectoparasites did not influence on the seroprevalence of the disease. In addition, age, herd size, contact with small ruminants and history of abortion were identified as risk factors for C. abortus infection according to the univariate analysis. Based on multivariate analysis, age group of 4-8 years, small herd size, contact of camels with sheep and goats, and history of abortion were found to be significant risk factors for chlamydiosis transmission in camels. These factors had odds ratios of 4.23, 3.51, 2.84, and 2.5, respectively. These results suggest that camels have a role in the epidemiology of C. abortus infection. This promotes awareness and severe public health concern about infectious camel illnesses, allowing for additional diagnostic advancements and effective management techniques to be developed.
沙眼衣原体（C. abortus）是一种革兰氏阴性、专性细胞内细菌，它会给人类带来严重的公共卫生问题，并导致动物的生殖问题。关于该病原体在埃及骆驼中的流行病学信息非常罕见。本研究旨在评估埃及骆驼中是否存在针对沙眼衣原体的抗体，并评估感染的相关危险因素。从埃及三个省的骆驼中采集了总共 410 份血液样本，并使用商业 ELISA 试剂盒进行了检测。总的血清阳性率为 6.6%，其中吉萨省的沙眼衣原体血清阳性率较高。地理位置、性别和寄生虫感染并不影响疾病的血清流行率。此外，根据单因素分析，年龄、畜群规模、与小反刍动物接触以及流产史被确定为沙眼衣原体感染的危险因素。基于多因素分析，4-8 岁年龄组、小畜群规模、骆驼与绵羊和山羊接触以及流产史被发现是骆驼中衣原体传播的显著危险因素。这些因素的优势比分别为 4.23、3.51、2.84 和 2.5。这些结果表明，骆驼在沙眼衣原体感染的流行病学中发挥了作用。这提高了对传染性骆驼疾病的认识和严重的公共卫生关注，从而促进了额外的诊断进展和有效的管理技术的发展。
