title: GENETIC AND IMMUNOLOGICAL EVIDENCES OF BORRELIA BURGDORFERI IN DOG IN THAILAND.
abstract: Lyme disease is a tick-borne zoonotic disease caused by spirochete Borrelia burgdorferi. It is transmitted from animals to humans by the bite of infected ticks of the genus Ixodes. Although Lyme disease has been reported in China and Japan, the disease has never been reported in Thailand. Blood samples and ticks were collected from 402 dogs from 7 and 3 animal clinics in Chiang Mai and Phuket Provinces, Thailand, respectively. Blood samples were tested for antibodies against B. burgdorferi, Anaplasma spp, Ehrlichia spp and Dirofilaria immitis using a commercial kit, and positive blood samples were subjected to nested PCR assay for B. burgdorferi fla, ospA and ospC, amplicons of which also were sequenced. Only one dog (from Chiang Mai) was positive for B. burgdorferi, with 97% to 100% genetic identity, depending on the sequences used for comparison, with strains from United State of America. All 376 ticks collected were Rhipicephalus sanguineus, but no tick was found on the infected dog. Further investigations of the infection source and vector are needed to understand potential risks of Lyme disease to dogs and humans in Thailand.
authors.forename: Nattawooti
authors.initials: N
authors.lastname: Sthitmatee
authors.forename: Wanna
authors.initials: W
authors.lastname: Jinawan
authors.forename: Nawaporn
authors.initials: N
authors.lastname: Jaisan
authors.forename: Weerapongse
authors.initials: W
authors.lastname: Tangjitjaroen
authors.forename: Sasisophin
authors.initials: S
authors.lastname: Chailangkarn
authors.forename: Chollada
authors.initials: C
authors.lastname: Sodarat
authors.forename: Monaya
authors.initials: M
authors.lastname: Ekgatat
authors.forename: Pawin
authors.initials: P
authors.lastname: Padungtod
mesh_terms: D000818:Animals; D001096:Arachnid Vectors; D025065:Borrelia burgdorferi / Q000235:genetics / Q000302:isolation & purification*; D004283:Dog Diseases / Q000235:genetics / Q000469:parasitology*; D004285:Dogs; D007303:Insect Vectors; D008193:Lyme Disease / Q000662:veterinary*; D013785:Thailand