Distribution of serotypes of Nocardia asteroides from animal, human, and environmental sources.

Journal of Clinical Microbiology
A C Pier, R E Fichtner

Abstract

The antigenic types of 129 isolates of Nocardia asteroides from diverse clinical, environmental, and geographic origins were determined. The majority of the isolates studied were of bovine (56) or human (44) origin; 11 were derived from six species of animals other than cattle, and 10 were isolated from environmental sources; the source of 8 strains could not be determined. Testing culture filtrate antigens against four standard reference sera in a gel diffusion precipitin test established the antigenic type of 95.3% of the isolates. After excluding strains that weighted the data because of common infection, the distribution of serotypes was examined according to the origin of the isolate. Type I was the most frequently encountered serotype (31.9%); types III (15.0%) and IV (20.4%) were also observed frequently, as was the antigenic mixture III + IV (14.2%). There was an apparent difference in frequency of type III and IV antigens among isolates of bovine and human origin; type III made up 20.0% of the bovine isolates and 13.6% of the human isolates, whereas type IV constituted 10.0% of bovine and 27.3% of human isolates.

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Dec 1, 1983·The Journal of Hygiene·B L Beaman, A M Sugar
Dec 1, 1983·The Journal of Hygiene·D A Stevens
Aug 2, 2006·Australian Veterinary Journal·R MalikC Gilpin
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Dec 1, 1981·The American Journal of Medicine·D A StevensE T Houang

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