AN UNUSUAL H-ANTIGEN (Z66) IN STRAINS OF SALMONELLA-TYPHI

  • 1 January 1981
    • journal article
    • research article
    • Vol. A132  (3) , 331-334
Abstract
Eleven S. typhi isolates were recovered from patients with typhoid in Indonesia. These motile isolates had neither H:d nor H:j antigen but had a new H antigen, designated Z66. After passage through semi-solid agar medium with anti-Z66 serum (in U-tube), 7 strains were agglutinable by H:d antiserum. No strain was able to express the 3 H factors. In case of typhoid fever caused by such strains, conventional Widal test may not detect anti-H:d agglutinins in patients'' sera.

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