Ants Hymenoptera Formicidae in hospital centers of Valle del Cauca as vectors of nosocomial pathogens Hormigas Hymenoptera Formicidae en centros hospitalarios del Valle del Cauca como vectores de patogenos nosocomiales

Coimbra, Joao Carlos; Pinto, Iraja Damiani; Wurdig, Norma Luiza; Do Carmo, Dermeval Aparecido

Revista Colombiana de Entomologia. July-December; 312: 183-187


Accession: 037859886

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Ants and nosocomial pathogens carried by them were studied in health care centers at four localities in the department of Valle del Cauca: Cartago, Tulua, Cali and Buenaventura. Seven species were found, of which Paratrechina longicornis and Tapinoma melanocephalum were the most frequently collected. Fourteen bacterial types were isolated; eight were found to be exclusively transported by four species of ants (T. melanocephalum, P. longicornis, Tetramorium bicarinatum y Monomorium pharaonis). The most virulent Gram-positive coccus was Staphylococcus aureus and the Gram-negative bacilli were Escherichia coli, Serratia marcescens, S. liquefasciens, Enterobacter agglomerans, and E. calcoaceticus. Staphylococcus sp. coagulasa (-) was the pathogen most commonly isolated from ants.