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Revista do Instituto de Medicina Tropical de São Paulo

On-line version ISSN 1678-9946

Rev. Inst. Med. trop. S. Paulo vol.33 no.4 São Paulo July/Aug. 1991 



Isolation of urease-positive Vibrio parahaemolyticus from diarrheal patients in Northeast Brazil


Vibrio parahaemolyticus urease-positivos de pacientes diarréicos no Nordeste do Brasil



Marcelo MagalhãesI; Vera MagalhãesII; Maria G. AntasI; Seiki TatenoI

ILaboratório Keizo Asami, Universidade Federal de Pernambuco. Recife, PE, Brasil
IIDepartamento de Medicina Tropical, Universidade Federal de Pernambuco. Recife, PE, Brasil

Address for correspondence




Of 21 human fecal strains of Vibrio parahaemolyticus, isolated on the Northeast Coast of Brazil, eight (38%) were urease positive. Most of these strains, in contrast to the urease-negative ones, did not produce the hemolysin responsible for the Kanagawa phenomenon.

Key words: Vibrio parahaemolyticus; Vibrio diarrhea; Vibrio urease; Kanagawa phenomenon.


De 21 linhagens de Vibrio parahaemolyticus, isoladas de fezes humanas, na costa Nordeste do Brasil, oito (38%) foram urease positivas. A maioria dessas linhagens, em contraste com as urease-negativas, não produziram a hemolisina responsável pelo fenômeno Kanagawa.



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Address for correspondence:
M. Magalhães
Rua Sete de Setembro, 508
CEP 50050, Recife, Brasil

Recebido para publicação em 21/11/1990
Aceito para publicação em 8/4/1991
Supported by CNPq - grant 416241 and Japan International Cooperation Agency.

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