Microscopy of bronchial aspirate showing gram-positive bacilli. A 71-year-old male with a history of chronic obstructive pulmonary disease (COPD) developed fever, anorexia, and shortness of breath. He ...

OBJECTIVE: Tracheal aspirates (TAs) from mechanically ventilated very low birth weight (VLBW) infants are frequently obtained during the evaluation of suspected sepsis, tracheitis, or ...

Despite having a low occurrence rate, Listeria monocytogenes represents one of the most prominent foodborne pathogens in the world. This opportunistic gram-positive bacillus is able to cross three ...

This Gram's stain description is indicative of Actinomyces species. These anaerobic filamentous bacteria are endogenous flora of the oropharynx, gastrointestinal tract, and female genital tract (see ...