1887

Abstract

Summary

isolates from human clinical sources were incubated for various times in modified 110 medium and tested for production of capsule by the serum-soft agar technique. Ten (5.7%) of 175 isolates were encapsulated after incubation for 24 h. A more detailed examination of 77 isolates showed that incubation period affected the production of capsule. After 2 h, 31% were encapsulated, but after 6 h and 24 h this decreased to 17% and 4% respectively. Rapid passage induced the expression of capsule in four of 50 unencapsulated strains. Only three of 20 encapsulated strains could be typed with standard antisera.

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/content/journal/jmm/10.1099/00222615-20-2-275
1985-10-01
2019-12-05
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http://instance.metastore.ingenta.com/content/journal/jmm/10.1099/00222615-20-2-275
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