Observou-se a alta ocorrência de fatores de virulência entre os isolados de
Enterococcus spp. encontradas em alimentos, mormente entre E. faecalis. Genes de
virulência foram detectados em isolados de E. gallinarum, E. hirae e E. durans, evidenciando a necessidade de avaliar a virulência de outros Enterococcus spp. em alimentos além de E. faecalis e E. faecium, os mais conhecidos em virtude de ocasionarem moléstias nosocomiais.
Concernente ao estudo correlativo realizado entre isolados de E. faecalis de laticínios e material clínico de urina, observou-se a ocorrência similar a nível estatístico de cylA, cylM, gelE, ace, esp e agg em ambas as fontes de isolamento. Somente cylB e efaA mostraram maior aderência a E. faecalis obtidos de urina e, assim, ressalta-se a iminência dos isolados de alimentos tornarem-se infectantes caso colonizem o TGI ou, ainda, transmitirem horizontalmente os fatores de virulência citados em cenário favorável.
Relativamente à resistência a antimicrobianos, verificou-se maior sensibilidade aos fármacos analisados entre os isolados de laticínios. Contudo, muitos mostraram- se resistentes à tetraciclina e à eritromicina. Estes resultados não devem ser relevados em virtude de onde foram encontrados (leite cru e queijos Minas frescal), caracterizando riscos à saúde de seus consumidores. Ademais, a literatura indica a viabilidade de transmissão desta resistência a outras bactérias através de EGM mesmo in situ.
Sobre às análises multivariadas realizadas com dados obtidos em MALDI- TOF/MS, observou-se um resultado favorável ao seu uso com o intuito de discriminar isolados de E. faecalis oriundos de fontes de isolamento diferentes, como mostrado através dos modelos PLS-DA e HCA.
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