Colonization and risk factors for Brachyspira aalborgi and Brachyspira pilosicoli in humans and dogs on tea estates in Assam, India.
The prevalence of colonization with the anaerobic intestinal spirochaetes Brachyspira aalborgi and Brachyspira pilosicoli was investigated in humans (n = 316) and dogs (n = 101) living on three tea estates in Assam, India. Colonization was detected using PCR on DNA from faeces. Nineteen (6%) human faecal samples contained B. aalborgi DNA, 80 (25.3%) contained B. pilosicoli DNA, and 10 (3.2%) contained DNA from both species. One canine sample contained DNA from B. pilosicoli. Significant factors for B. aalborgi colonization in logistic regression were: infection of family members with B. aalborgi (P < 0.001), being a resident of Balipara (P = 0.03), and use of water treatment (P = 0.03). For B. pilosicoli, significant factors were: other family members being positive for B. pilosicoli (P < 0.001), water obtained from a well (P = 0.006), water treatment (P = 0.03), and not having visited a doctor in the previous 12 months (P = 0.03).
School of Veterinary and Biomedical Sciences, Murdoch University, Murdoch, Western Australia 6150, Australia.
M A
MA
Munshi
R J
RJ
Traub
I D
ID
Robertson
A S J
AS
Mikosza
D J
DJ
Hampson
D000382:Agricultural Workers' Diseases / Q000453:epidemiology / Q000382:microbiology* / Q000662:veterinary*; D000704:Analysis of Variance; D000818:Animals; D017400:Brachyspira / Q000145:classification / Q000235:genetics; D015169:Colony Count, Microbial; D004269:DNA, Bacterial / Q000032:analysis / Q000235:genetics; D003906:Developing Countries; D004283:Dog Diseases / Q000453:epidemiology / Q000382:microbiology*; D004285:Dogs; D005243:Feces / Q000382:microbiology; D006801:Humans; D007194:India / Q000453:epidemiology; D016015:Logistic Models; D016133:Polymerase Chain Reaction; D011159:Population Surveillance; D015995:Prevalence; D012111:Residence Characteristics / Q000706:statistics & numerical data; D012307:Risk Factors; D012423:Rural Health / Q000706:statistics & numerical data; D012703:Serotyping; D013145:Spirochaetales Infections / Q000453:epidemiology / Q000382:microbiology* / Q000662:veterinary*; D011795:Surveys and Questionnaires; D013662:Tea; D014871:Water Microbiology
D004269:DNA, Bacterial; D013662:Tea