The seroprevalence of Chlamydiaceae infection in Tibetan pigs in Tibet, China, was examined by indirect hemagglutination assay (IHA), between April, 2010, and December, 2010. A total of 71 of 427 serum samples (16.63%, 95% confidence interval [CI] 15.31–17.95] were positive for Chlamydiaceae antibodies. Forty Chlamydiaceae seropositives from 232 samples were recorded in sera from Nyingchi (17.24%, 95% CI 15.40–19.08) and 31 positives were recorded in 195 serum samples from Mainling (15.90%, 95% CI 14.02–17.78). The investigation showed that the prevalence in female animals was 17.61% (95% CI 15.22–20.00), and in male animals it was 12.72% (95% CI 11.07–14.37). The prevalence ranged from 0% to 20.61% (95% CI 17.81–23.48) among different age groups, with a higher prevalence in growing pigs (p<0.01). The results indicated that Chlamydiaceae infection was widespread in Tibetan pigs in Tibet, China, which is of public health concern in this region of the world. To our knowledge, this is the first report of Chlamydiaceae seroprevalence in Tibetan pigs in Tibet, China.
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References
1.
AntoniettaDF, ManuelaD, FedericoM, MariaRet al.Seroepidemiologic survey for Chlamydia suis in wild boar (Sus scrofa) populations in Italy. J Wildlife Dis, 2011; 47:709–712.
2.
BeckerA, Lutz-WohlgrothL, BrugneraE, LuZHet al.Intensively kept pigs pre-disposed to chlamydial associated conjunctivitis. J Vet Med A, 2007; 54:307–313.
3.
CamenischU, LuZH, VaughanL, CorbozLet al.Diagnostic investigation into the role of Chlamydiae in cases of increased rates of return to oestrus in pigs. Vet Rec, 2004; 155:593–596.
4.
CaoXP, ZhangYF. Serological survey of porcine chlamydiosis in Chuxiong city of Yunnan province. Chin Anim Husbandry Vet Med, 2007; 34:110–111[in Chinese].
5.
Cubero-PabloMJ, PlazaM, PerezL, GonzalezMet al.Seroepidemiology of chlamydial infections of wild ruminants in Spain. J Wildlife Dis, 2000; 36:35–47.
6.
EggemannG, WendtM, HoelzleLE, JägerCet al.Prevalence of Chlamydia infections in breeding sows and their importance in reproductive failure. Deutsches Tierarztl Wochenschr, 2000; 107:3–10.
7.
HelmutH, AngelaB, FalkM, KonradS. Occurrence of Chlamydiaceae spp. in a wild boar (Sus scrofa L.) population in Thuringia (Germany)Vet Microbiol, 2004; 103:121–126.
8.
JinAH, GuBL, WeiXY, FangGM. Serological survey of porcine chlamydiosis in Shanghai and around areas. Shanghai J Anim Husbandry Vet Med, 2005; 6:23[in Chinese].
9.
KaletaEF, TadayEM. Avian host range of Chlamydophila spp. based on isolation, antigen detection and serology. Avian Pathol, 2003; 32:435–461.
10.
LemusJA, FargalloJA, VergaraP, ParejoDet al.Natural cross chlamydial infection between livestock and free-living bird species. PLOS One, 2010; 5:e13512.
11.
LiML. Serological investigation of chlamydiosis in pigs from partial intensive farms in Hunan province. Hunan J Anim Sci Vet Med, 2005; 6:36–37[in Chinese].
12.
LuoJ, YangXY, DaiAL, LiXH. Serological investigation of chlamydiosis in sow pigs from intensive farms. Fujian J Anim Husbandry Vet Med, 2006; 28:4–5[in Chinese].
13.
PantchevA, StingR, BauerfeindR, TyczkaJet al.Detection of all Chlamydophila and Chlamydia spp. of veterinary interest using species-specific real-time PCR assays. Comp Immunol Microb, 2010; 33:473–484.
14.
RasoTF, CarrascoAOT, SilvaJCR, MarvuloMFVet al.Seroprevalence of antibodies to Chlamydophila psittaci in zoo workers in Brazil. Zoonoses Public Health, 2010; 57:411–416.
15.
ReinholdP, KirschvinkN, TheegartenD, BerndtA. An experimentally induced Chlamydia suis infection in pigs results in severe lung function disorders and pulmonary inflammation. Vet Rec, 2008; 39:35.
SachseK, GrossmannE, BerndtA, SchuttCet al.Respiratory chlamydial infection based on experimental aerosol challenge of pigs with Chlamydia suis. Comp Immunol Microb, 2004; 27:7–23.
18.
SchautteetK, VanrompayD. Chlamydiaceae infections in pig. Vet Rec, 2011; 42:29.
19.
SuoXF, WangDL, ZhangSH, WangJXet al.Serological investigation of porcine chlamydiosis in pig from intensive farms in Hainan province. Swine Prod, 2005; 3:31–32[in Chinese].
20.
VanrompayD, GeensT, DesplanquesA, HoangTQet al.Immunoblotting, ELISA and culture evidence for Chlamydiaceae in sows on 258 Belgian farms. Vet Microbiol, 2004; 99:59–66.
21.
WangJH, ChenL, RenXY, WuQet al.Serological investigation of porcine chlamydiosis of the parts of several regions in Henan province. Progress Vet Med, 2006; 27:88–89[in Chinese].
22.
WuSM, CirenD, HuangSY, XuMJet al.First report of Toxoplasma gondii prevalence in Tibetan Pigs in Tibet, China. Vector Borne Zoonotic Dis, 2012; 12:654–656.
23.
XianQZ, CaiMZ, WangSM, HuangLZ. Serological investigation and control of chlamydiosis in pig from small farms in partial areas of Guangdong and Guangxi province. Chin J Anim Husbandry Vet Med, 2007; 1:20–21[in Chinese].
24.
XinSP, ShiD, ZhangJ. Research of protection, development and utilization of genetic resources of Tibetan pig in Tibet Autonomous Region. Chin Anim Husbandry Bull, 2011; 4:49–51[in Chinese].
25.
XuMJ, HeY, LiangR, ZhouDHet al.Seroprevalence of Chlamydia infection in pigs from intensive farms in Southern China. J Anim Vet Adv, 2010; 9:1143–1145.
26.
ZhengZ. A typical high plateau pig breed—Tibetan pig. Jilin J Anim Vet Med, 1998; 11:18[in Chinese].
27.
ZhouP, LinZY, WangTF, LuoCQet al.Investigation on seral epidemiolog of porcine chlamydiosis in several regions of Longyan city. Progress Vet Med, 2008; 29:30–35[in Chinese].
