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Journal of Clinical Microbiology, March 1999, p. 873-874, Vol. 37, No. 3
0095-1137/99/$00.00+0

Identification of Shigella flexneri Subserotype 1c in Rural Egypt

Atef El-Gendy,1 Nemat El-Ghorab,1 Edward M. Lane,1 Remon Abu Elyazeed,1 Nils I. A. Carlin,2 Mary M. Mitry,1 Bradford A. Kay,1,dagger Stephen J. Savarino,1 and Leonard F. Peruski Jr.1,*

Research Sciences Department, U.S. Naval Medical Research Unit No. 3, Cairo, Egypt,1 and SBL Vaccin AB, S-105 21 Stockholm, Sweden2

Received 10 August 1998/Returned for modification 21 October 1998/Accepted 8 December 1998

In a population-based study of diarrhea in rural, northern Egypt, 60 Shigella flexneri strains were identified, of which 10 could not be definitively serotyped. Serological analysis with commercial reagents suggested that they were serotype 1, but the strains failed to react with subserotype 1a- or 1b-specific antibodies. All 10 strains reacted with MASF 1c, a monoclonal antibody specific for a provisional S. flexneri subserotype, 1c, first identified in Bangladesh and not previously detected outside of that region. Our results show that S. flexneri subserotype 1c is not unique to Bangladesh and that the inability to detect it may reflect both the limited use of suitable screening methods and the rarity of this subserotype.

* Corresponding author. Mailing address: c/o Commanding Officer, U.S. Naval Medical Research Unit No. 3, PSC 452, Box 5000, FPO AE 09835-0007. Phone: 20/2 284 1381. Fax: 20/2 284 1382. E-mail: boushrah{at}namru3.navy.mil.

dagger Present address: Centers for Disease Control and Prevention, Division of Bacterial and Mycotic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333.

Journal of Clinical Microbiology, March 1999, p. 873-874, Vol. 37, No. 3
0095-1137/99/$00.00+0


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