Shigella was isolated as a cause of traveler's diarrhea in fifty- seven out of five hundred and eighty-seven examined samples. They were identified as S. flexneri [49%] , S. sonnei [33%] , S.
boydii [7%] and S. dysenteriae [10%] ; whereas, only S. sonnei [66%] and S. flexneri [34%] were found to cause diarrhea in this country. Ampicillin and chloramphenicol resistance was more frequent in S. flexneri than S. sonnei; whereas, trimethoprim sulfamethoxazole resistance was more frequent in S. sonnei of travel-related isolates. Seventy- nine and 55% of S. sonnei isolates from traveler's diarrhea showed tetracycline and trimethoprim sulfamethoxazole resistance, respectively compared with only 8% of isolates from patients without travel history. Low level resistance to cephalosporins was found; whereas quinolones resistant strains were not detected among Shigella isolates and thus, quinolones may be the appropriate antibiotic for the prevention and to initiate therapy of travel-related Shigellosis
Salah Abdalla ,Joaquim Gascon ,
Studies on shigella serotypes isolated from Spanish travelling abroad compared with isolates from spain,
Assiut Med. J. 1994;
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