[Ants as mechanical vectors of microorganisms in the School Hospital of the Universidade Federal do Triângulo Mineiro].

The pathogens associated with ants at the teaching hospital of the Federal University of the Triângulo Mineiro, in Uberaba, MG, were studied. Three species of ants were identified: Tapinoma melanocephalum, Pheidole sp and Paratrechina longicornis. The principal microorganisms found were Staphylococcus sp, Gram-positive bacilli, Pseudomonas sp and Micrococcus sp.

[Evaluation of presence of Staphylococcus aureus on the beds of Hospital Escola's Intensive Care Unit, concerning the position on the mattress, before and after cleaning].

By means of culture medium, it was researched the position of the colony of Staphylococcus aureus on the mattress, to evaluate the efficaciousness of the methods of cleaning and disinfection of the river bed in the Faculdade de Medicina do Triângulo Mineiro's School Hospital (Uberaba). It were evaluated fifty mattresses on the period of October 22nd (2000) to January 16th (2001). The samples were collected and grown, the exhaustion technique draining, on two different nutrient bases (blood agar and mannitol salt agar) followed by catalase and coagulase tests.