title: Seroprevalence and risk factors of Chlamydia psittaci infection in domestic geese Anser domestica, in Hainan province of China.
abstract: Chlamydia psittaci, the agent of psittacosis in humans, infects a wide range of bird species. To assess the risk of psittacosis posed by domestic geese in China, the seroprevalence of C. psittaci infection in domestic geese in Hainan province, tropical China was examined using indirect hemagglutination assay (IHA). The overall seroprevalence was estimated at 25.6% (461/1800; 95% CI: 23.6-27.6). The C. psittaci seroprevalence ranged from 19% (95% CI: 14.6-23.4) to 34% (95% CI: 28.6-39.4) among different regions in Hainan province, and the differences were statistically significant (P<0.01). The risk factors significantly associated with C. psittaci seroprevalence were the presence of hygiene conditions, age, gender, and environment of geese in the farms. The results of the present investigation indicated the high seroprevalence of C. psittaci infection in geese in Hainan province, tropical China. Close contact with these geese is associated with a risk of zoonotic transmission of C. psittaci. Public education should be implemented to reduce the risk of avian to human transmission of such a pathogenic agent. To the best of our knowledge, this is the first report documenting the occurrence of C. psittaci seroprevalence in geese in China.
authors.affiliation: Scientific and Technical Information Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan Province, PR China.
authors.forename: Jun-Ming
authors.initials: JM
authors.lastname: Zhao
authors.affiliation: Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan Province, PR China.
authors.forename: Guang
authors.initials: G
authors.lastname: Rong
authors.affiliation: Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan Province, PR China.
authors.forename: Han-Lin
authors.initials: HL
authors.lastname: Zhou
authors.affiliation: Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan Province, PR China. Electronic address: guanyuhou@126.com.
authors.forename: Guan-Yu
authors.initials: GY
authors.lastname: Hou
mesh_terms: D000367:Age Factors; D000818:Animals; D001715:Bird Diseases / Q000175:diagnosis / Q000453:epidemiology* / Q000382:microbiology; D002681:China / Q000453:epidemiology; D002691:Chlamydophila psittaci / Q000302:isolation & purification*; D005260:Female; D005777:Geese / Q000382:microbiology*; D006386:Hemagglutination Tests; D006801:Humans; D008297:Male; D009956:Psittacosis / Q000175:diagnosis / Q000453:epidemiology* / Q000662:veterinary*; D012307:Risk Factors; D016036:Seroepidemiologic Studies; D012737:Sex Factors; D015047:Zoonoses / Q000453:epidemiology* / Q000382:microbiology
keywords: Domestic geese; Indirect hemagglutination assay (IHA); Risk factors; Seroprevalence