Serologic Evidence for <i>Babesia bigemina</i> Infection in Wild Yak (<i>Bos mutus</i>) in Qinghai Province, China

Li, Ying; Liu, Pengpeng; Wang, Chengmin; Chen, Gang; Kang, Ming; Liu, Daoxin; Zeng-kui, LI; He, Hongxuan; Dong, Ying; Zhang, Yanming

doi:10.7589/2014-03-076

“…The prevalence of B . bigemina in this study was similar to previous research by Liu et al [21], and is lower than that reported in other provinces of China [19–21,35], South Africa [36], and in Tanzania [37]. However, the prevalence in our study was higher than that recorded in the Philippines [38].…”

Section: Discussionsupporting

confidence: 87%

Molecular epidemiology and risk factors of Anaplasma spp., Babesia spp. and Theileria spp. infection in cattle in Chongqing, China

Zhou

¹

,

Li

²

,

Sun

³

et al. 2019

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Tick-borne pathogens (TBPs) seriously affect cattle production and can be economically damaging. The epidemiology of these organisms in the Chongqing municipality of China is not well described. This study aimed to investigate the prevalence and risk factors of TBPs including Anaplasma spp., Babesia spp. and Theileria spp. in cattle in Chongqing municipality. The results showed that 43.48% (150/345) of cattle were infected with at least one TBP, of which single infections were detected in 104 (30.14%), double infections in 34 cattle (9.86%) and triple infections in 12 (3.48%) of the cattle. The overall prevalence of Anaplasma spp., Theileria spp. and B . bigemina were 22.32%, 23.19% and 7.24%, respectively. Among these, the prevalence of A . bovis , A . central , A . phagocytophilum , A . platys , A . marginale , T . sinensisi and T . orientalis were 8.41%, 7.83%, 4.93%, 4.35%, 2.61%, 22.32% and 2.60%, respectively. We could not detect B . bovis , T . annulata , T . luwenshuni or T . uilenbergi in cattle. Cattle ≥1-year-old were more likely to be infected with Theileria spp. [adjusted odd ratio (AOR) = 2.70, 95% CI = 1.12–6.56)] compared with younger cattle, while cattle ≥1-year-old had reduced susceptibility to B . bigemina (AOR = 0.14, 95% CI = 0.03–0.60). Cattle living at higher altitude (≥500 m) were more susceptible to B . bigemina (AOR = 6.97, 95% CI = 2.08–23.35) and Theileria spp. infection (AOR = 1.87, 95% CI = 1.06–3.32). The prevalence of Theileria spp. on farms with cats was significantly higher than that without cats (AOR = 2.56, 95% CI = 1.12–5.88). Infection with A . bovis and A . central were significantly associated with A . phagocytophilum infection. Furthermore, there were significant associations between A . bovis and A . central infection, T . sinensisi and A . marginale infection, and B . bigemina and ...

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“…Ixodid ticks infestation of livestock is often found in Qinghai Province, including 54.5, 24.0, 36.1% infection rates of A. ovis in sheep [10], Babesia spp. in wild yaks [11], and Theileria spp. in yaks [12], respectively.…”

Section: Introductionmentioning

confidence: 99%

Molecular detection of Anaplasma infections in ixodid ticks from the Qinghai-Tibet Plateau

Ren

¹

,

Yang

²

,

Mukhtar

³

et al. 2019

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Anaplasma species are tick-transmitted obligate intracellular bacteria that infect many wild and domestic animals and humans. The prevalence of Anaplasma spp. in ixodid ticks of Qinghai Province is poorly understood. In this study, a total of 1104 questing adult ticks were investigated for the infection of Anaplasma species. As a result, we demonstrated the total infection rates of 3.1, 11.1, 5.6, and 4.5% for A. phagocytophilum, A. bovis, A. ovis and A. capra, respectively. All of the tick samples were negative for A. marginale. The positive rates of A. phagocytophilum, A. ovis and A. capra in different tick species were significantly different. The positive rates of A. capra and A. bovis in the male ticks were significantly higher than that in the female ticks. Sequence analysis of A. ovis showed 99.5–100% identity to the previous reported isolates. The sequences of A. phagocytophilum had 100% identity to strains Ap-SHX21, JC3–3 and ZAM dog-181 from sheep, Mongolian gazelles, and dogs. Two genotypes of A. capra were found based on 16S rRNA, citrate synthase (gltA) gene and heat shock protein (groEL) gene analysis. In conclusion, A. bovis, A. ovis, A. phagocytophilum, and A. capra were present in the ticks in Qinghai Province. Anaplasma infection is associated with tick species, gender and distribution. These data will be helpful for understanding prevalence status of Anaplasma infections in ticks in Qinghai-Tibet Plateau.Electronic supplementary materialThe online version of this article (10.1186/s40249-019-0522-z) contains supplementary material, which is available to authorized users.

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“…Previous studies have reported the presence of different Babesia species in the Qinghai Plateau, including B. motasi, B. bigemina, and B. caballi, infecting sheep, yaks, and ticks [15,25]. In the current study, only one of the examined goats was positive for Babesia motasi-like Lintan/Ningxia/Tianzhu, giving the possibility that the Qinghai plateau area has a low infection rate with Babesia species.…”

Section: Discussionmentioning

confidence: 48%

“…While prior research in the Qinghai region has delved into the study of Babesia and Theileria, it predominantly focused on ticks [12,24], yaks [13,14,25], and Tibetan sheep [13,15]. In contrast, this study employs a more comprehensive approach, investigating various key livestock species in the Qinghai region, including Tibetan sheep, goats, yaks, cattle, Bactrian camels, horses, and donkeys.…”

Section: Introductionmentioning

confidence: 99%

Molecular Identification of Babesia and Theileria Infections in Livestock in the Qinghai–Tibetan Plateau Area, China

Ma,

Jian,

Wang

et al. 2024

Animals

0

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The northwestern region of China, known as the Qinghai–Tibet Plateau Area (QTPA), is characterized by unique climate conditions that support the breeding of various highly-adapted livestock species. Tick vectors play a significant role in transmitting Babesia and Theileria species, posing serious risks to animal health as well as the economy of animal husbandry in QTPA. A total of 366 blood samples were collected from Tibetan sheep (n = 51), goats (n = 67), yaks (n = 43), cattle (n = 49), Bactrian camels (n = 50), horses (n = 65), and donkeys (n = 40). These samples were examined using conventional and nested PCR techniques to detect Theileria and Babesia species. The overall infection rates were 0.3% (1/366) for Babesia spp. and 38.2% (140/366) for Theileria spp. Notably, neither Babesia nor Theileria species were detected in donkeys and yaks. The infection rates of Babesia and Theileria species among animals in different prefectures were significantly different (p < 0.05). Furthermore, Babesia bovis, B. bigemina, B. caballi, and B. ovis were not detected in the current study. To our knowledge, this is the first documented detection of Theileria luwenshuni infection in Bactrian camels and goats, as well as T. sinesis in cattle and T. equi in horses on the Qinghai plateau. These novel findings shed light on the distribution of Babesia and Theileria species among livestock species in QTPA.

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Serologic Evidence for Babesia bigemina Infection in Wild Yak (Bos mutus) in Qinghai Province, China

Cited by 8 publications

References 19 publications

Molecular epidemiology and risk factors of Anaplasma spp., Babesia spp. and Theileria spp. infection in cattle in Chongqing, China

Molecular epidemiology and risk factors of Anaplasma spp., Babesia spp. and Theileria spp. infection in cattle in Chongqing, China

Molecular detection of Anaplasma infections in ixodid ticks from the Qinghai-Tibet Plateau

Molecular Identification of Babesia and Theileria Infections in Livestock in the Qinghai–Tibetan Plateau Area, China

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