Mathurot DuangchanchotRapee InpunkaewPravate ThongsiriNobuhito HayashimotoNobuhiro GemmaMasaru NikaidoMasayoshi TakahashiKanchana KengkoomMahidol UniversityCentral Institute for Experimental AnimalsToshiba Corporation2018-11-092018-11-092014-01-01Experimental Animals. Vol.63, No.2 (2014), 169-173134113572-s2.0-84899412247https://repository.li.mahidol.ac.th/handle/20.500.14594/33149Prevalence of Helicobacter is mostly unknown in laboratory animals in Thailand. The 221 mice feces/cecum from 8 universities, 2 pharmaceutical companies and 3 research institutions in Thailand were surveyed for the prevalence and distribution of Helicobacter species by using the Electrochemical DNA chip. Helicobacter were detected 23/46 samples in Specific Pathogen Free (SPF) and 168/175 in conventional condition. Prevalence of Helicobacter were 98%, 96%, 92% and 78% in South (n=40), Northeast (n=40), North (n=25) and Central area (n=116), respectively. Only Central area holds SPF facility resulting in Helicobacter prevalence that seems to be lower than other areas. Three species of Helicobacter were detected in feces/cecum samples by sequence analysis: H. rodentium (67.0%, 148 samples), Helicobacter sp. MIT 01-6451 (15.4%, 34 samples), and unidentified Helicobacter species (14.1%, 9 samples). The results suggested that H. rodentium is the most common species of Helicobacter in laboratory mice in Thailand. © 2014 Japanese Association for Laboratory Animal Science.Mahidol UniversityAgricultural and Biological SciencesBiochemistry, Genetics and Molecular BiologyVeterinaryArticleSCOPUS10.1538/expanim.63.169