There was no trend of increasing resistance of all
V. cholerae both O1 and non O1. Over all average rates of tetracycline resistance of V. cholerae O1, Inaba and
Ogawa were 0.9% and 16.3% respectively and trimethoprim/sulfamethoxazole resistance were 0.4% and
60.5% respectively. The strains were not resistant to norfloxacin.