is lactobacillus pyr positive
Most Gram-positive bacilli encountered in clinical specimens represent normal flora which are contaminants, including members of the genera Bacillus, Lactobacillus, and Corynebacterium.he lactobacilli are nonsporulating, Gram-positive bacilli classified in the large family Lactobacillaceae. Often they are found as long, slender Gram-positive rods in long chains. Usually they are contaminating commensals that are readily recognized from colony morphology and the fact that they are catalase-negative.