Prevalence of serotypes ofXanthomonas maltophiliafrom world-wide sources

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Abstract
SUMMARY: Since its development in 1988, a serologic typing scheme forXanthomonas maltophilia, based on 31 O antigens, has been successfully used to serotype isolates involved in nosocomial outbreaks in the United States. To determine if this serotyping scheme would be useful in typingX. maltophiliaisolates from worldwide sources, we obtained additional isolates from 10 countries; of 900 isolates tested, 795 (88·3%) were typable. In order of predominance, the three most common serotypes were 10, 3 and 19. These three serotypes were most frequently associated with respiratory and blood isolates. This serotyping system is useful as an epidemiologic screening method for universal typing of outbreaks ofX. maltophiliainfections.