Seroprevalence of major bovine-associated zoonotic infectious diseases in the Lao People's Democratic Republic.
Bovine-associated zoonotic infectious diseases pose a significant threat to human health in the Lao People's Democratic Republic (Lao PDR). In all, 905 cattle and buffalo serum samples collected in northern Lao PDR in 2006 were used to determine seroprevalence of five major bovine zoonotic infectious diseases that included Taenia saginata cysticercosis, bovine tuberculosis, Q-fever, bovine brucellosis, and bovine leptospirosis. Five enzyme-linked immunosorbent assays (ELISAs) were used to test for the presence of antibodies to the diseases, except Taenia saginata, for which we tested for the presence of Taenia metacestode circulating antigens. The overall highest prevalence was for T. saginata (46.4%), with lower prevalence for Q-fever (4%), leptospirosis (3%), tuberculosis (1%), and brucellosis (0.2%). Although there were no significant differences in the proportion of seroprevalence between sex and age of the animals sampled, there were significant differences between the provincial distributions. Further studies are required to determine the seroprevalence of these infections in other locations in Lao PDR, as well as other animal species including humans, in order to develop effective prevention and control strategies. This is the first study to investigate the prevalence of bovine zoonotic infectious agents in the Lao PDR. Positivity was demonstrated for all diseases investigated, with the highest prevalence for T. saginata antigen and Coxiella burnetti antibodies. For T. saginata, there were significant differences in the provincial distribution. Approximately 16% seroprevalence of Coxiella burnetti was noted in Xayabuly Province; however, there are no clear reasons why this was the case, and further studies are required to determine risk factors associated with this observation.
National Animal Health Centre, Department of Livestock and Fisheries, Ministry of Agriculture and Forestry , Luangprabang Road, Vientiane, Lao People's Democratic Republic.
Khamphouth
K
Vongxay
James V
JV
Conlan
Syseng
S
Khounsy
Pierre
P
Dorny
Stanley
S
Fenwick
R C Andrew
RC
Thompson
Stuart D
SD
Blacksell
D000818:Animals; D000907:Antibodies, Bacterial / Q000097:blood; D000909:Antibodies, Helminth / Q000097:blood; D002007:Brucellosis, Bovine / Q000453:epidemiology / Q000469:parasitology; D002020:Buffaloes; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology* / Q000382:microbiology / Q000469:parasitology; D016997:Coxiella burnetii / Q000276:immunology*; D003551:Cysticercosis / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D007812:Laos / Q000453:epidemiology; D041383:Leptospira interrogans serovar icterohaemorrhagiae / Q000276:immunology; D007922:Leptospirosis / Q000453:epidemiology / Q000382:microbiology; D008297:Male; D009163:Mycobacterium bovis / Q000276:immunology*; D011778:Q Fever / Q000453:epidemiology / Q000382:microbiology; D012189:Retrospective Studies; D016036:Seroepidemiologic Studies; D041202:Taenia saginata / Q000276:immunology*; D014380:Tuberculosis, Bovine / Q000453:epidemiology / Q000382:microbiology; D015047:Zoonoses / Q000453:epidemiology / Q000382:microbiology / Q000469:parasitology
D000907:Antibodies, Bacterial; D000909:Antibodies, Helminth