Seroepizootiology of Helicobacter pylori gastric infection in nonhuman primates housed in social environments

A. Dubois, N. Fiala, R. H. Weichbrod, G. S. Ward, M. Nix, P. T. Mehlman, D. M. Taub, G. I. Perez-Perez, M. J. Blaser

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

We determined the seroepizootiology of Helicobacter pylori infection in rhesus monkeys. Plasma was obtained from 196 animals (age range, 1 to 22 years) that were housed in social environments, either in indoor gang cages, in outdoor corrals, or in free-ranging forested conditions. Plasma immunoglobulin G levels were determined with a specific enzyme-linked immunosorbent assay, and the cutoff immunoglobulin G value for H. pylori seropositivity was determined from a study of 25 monkeys whose infection status was assessed by light microscopy and culture. One-year-old animals of both genders in all housing conditions had the lowest rate of positivity (60% in monkeys 1 year old versus 81% in monkeys 2 to 10 years old, P = 0.026). In addition, females tended to have higher rates of positivity than males. Seroconversion during a 1-year observation period occurred in 7 (28%) of 25 seronegative animals. Seroreversion occurred in 3 (4%) of the 78 positive animals; all 3 of these animals had received antimicrobial agents during the year. These observations demonstrate that the epizootiology of H. pylori infection in rhesus monkeys may serve as a model for human infection.

Original languageEnglish (US)
Pages (from-to)1492-1495
Number of pages4
JournalJournal of clinical microbiology
Volume33
Issue number6
DOIs
StatePublished - 1995
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Microbiology (medical)

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