Serological evidence of antibodies against Chlamydophila abortus in free-ranging yak (Poephagus grunniens) in Arunachal Pradesh, India

Abstract

Serum samples were randomly collected from 172 free-ranging yak (Poephagus grunniens, presently Bos grunniens) from six different yak tracts of Arunachal Pradesh, India, and subjected to enzyme-linked immunosorbent assay to detect the presence of specific antibodies against Chlamydophila abortus. The overall prevalence of this disease in yak was 35%. The prevalence of Cp. abortusspecific antibodies was significantly higher in yak cows (41%) than among bulls (25%). The highest prevalence (39%: 95% confidence interval [CI] = 27, 55) was found in yak between one and three years of age, while the lowest prevalence (20%: 95% CI = 10, 41) was reported in yak below one year of age.

Seroprevalence and risk factors of Chlamydia abortus infection in free-ranging white yaks in China

“…The present study, therefore, aimed at estimating C. abortus seroprevalence in white yaks. The results revealed the presence of C. abortus in 16.22% of white yaks in the present study, which was lower than the value of 35% in yaks in India [ 19 ] and similar to the 17.66% seroprevalence in black yaks in Qinghai province, China [ 16 ]. The differences in the seroprevalence of C. abortus exposure in yaks in different regions could be related to differences in ecological and geographical factors including temperature, rainfall or landscape differences.…”

“…Milk and meat of white yaks are the popular delicacy for local Tibetan people and other residents in Gansu Province. However, limited data about C. abortus infection was available in yaks all over the world [ 16 , 19 ], and no information on the prevalence of C. abortus in white yaks is available. The objective of the present survey was to investigate the seroprevalence and risk factors including region, gender, age and season of C. abortus infection in white yaks in Tianzhu Tibetan Autonomous County, northwestern China.…”

Serological prevalence of ovine and caprine chlamydophilosis in Riyadh region, Saudi Arabia

“…Our results also indicated that serological prevalence was higher in female than male animals in both species. Similar findings were reported in other species such as camels (Hussein et al, 2008) and freeranging yak (Bandyopadhyay et al, 2009). The reason behind this inter-sex difference is unclear but sex may be one of several factors that might affect the prevalence of chlamydophilosis such as type of animal production, reproductive management, sanitary procedures, proximity to other farming establishments, animal replacement policy, frequency of abortions, poor nutrition, overcrowding, transport, subclinical diseases and other forms of stress (Junior et al, 2010).…”

Sero-Epidemiological Study of Selected Zoonotic and Abortifacient Pathogens in Cattle at a Wildlife-Livestock Interface in South Africa

“…neighboring Kruger National Park and cattle in the wildlifelivestock interface exists. Three pathogens (C. burnetii, C. abortus, and N. caninum) have not been previously documented in the wildlife in the Kruger National Park, but they have been detected serologically in wildlife in other countries (Martino et al 2004, Bandyopadhyay et al 2009, Almería 2013, San-Miguel Ayanz et al 2017, González-Barrio and Ruiz-Fons 2019. The possibility therefore exists that the three pathogens detected in the cattle tested may be transmitted to the wildlife population across the fence.…”