Abstract
From stool samples of isolated subjects from members of the Yanomama tribe of South America, 432 isolates of Escherichia coli were obtained from 72 individuals. Two hundred and four of these strains were typable with a standard panel of 147 O antisera; included in the above were eight enteropathogenic strains. From the untypable strains, antisera were produced, and 13 serologically distinct O serotypes were identified. These data substantiate the ubiquity of known strains of E. coli as microhabitants of man's internal environment. The finding of 13 new O serotypes suggests that, in efforts to understand the ecosystem of primitive man, the internal milieu must also be investigated.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Arends T., Brewer G., Chagnon N., Gallango M. L., Gershowitz H., Layrisse M., Neel J., Shreffler D., Tashian R., Weitkamp L. Intratribal genetic differentiation among the Yanomama Indians of southern Venezuela. Proc Natl Acad Sci U S A. 1967 May;57(5):1252–1259. doi: 10.1073/pnas.57.5.1252. [DOI] [PMC free article] [PubMed] [Google Scholar]
- NETER E. Enteritis due to enteropathogenic Escherichia coli; present-day status and unsolved problems. J Pediatr. 1959 Aug;55(2):223–239. doi: 10.1016/s0022-3476(59)80091-3. [DOI] [PubMed] [Google Scholar]
- Neel J. V., Centerwall W. R., Chagnon N. A., Casey H. L. Notes on the effect of measles and measles vaccine in a virgin-soil population of South American Indians. Am J Epidemiol. 1970 Apr;91(4):418–429. doi: 10.1093/oxfordjournals.aje.a121152. [DOI] [PubMed] [Google Scholar]
- Neel J. V. Lessons from a "primitive" people. Science. 1970 Nov 20;170(3960):815–822. doi: 10.1126/science.170.3960.815. [DOI] [PubMed] [Google Scholar]
- SEARS H. J., BROWNLEE I. Further observations on the persistence of individual strains of Escherichia coli in the intestinal tract of man. J Bacteriol. 1952 Jan;63(1):47–57. doi: 10.1128/jb.63.1.47-57.1952. [DOI] [PMC free article] [PubMed] [Google Scholar]
- SEARS H. J., BROWNLEE I., UCHIYAMA J. K. Persistence of individual strains of Escherichia coli in the intestinal tract of man. J Bacteriol. 1950 Feb;59(2):293–301. doi: 10.1128/jb.59.2.293-301.1950. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Wright S. Evolution in Mendelian Populations. Genetics. 1931 Mar;16(2):97–159. doi: 10.1093/genetics/16.2.97. [DOI] [PMC free article] [PubMed] [Google Scholar]