<Li> Pseudomonas polycolor Clara 1930 </Li> <Li> Pseudomonas vendrelli nomen nudum 1938 </Li> <P> Pseudomonas aeruginosa is a common Gram - negative, rod - shaped bacterium that can cause disease in plants and animals, including humans . A species of considerable medical importance, P. aeruginosa is a multidrug resistant pathogen recognized for its ubiquity, its intrinsically advanced antibiotic resistance mechanisms, and its association with serious illnesses--hospital - acquired infections such as ventilator - associated pneumonia and various sepsis syndromes . </P> <P> The organism is considered opportunistic insofar as serious infection often occurs during existing diseases or conditions--most notably cystic fibrosis and traumatic burns . It is also found generally in the immunocompromised but can infect the immunocompetent as in hot tub folliculitis . Treatment of P. aeruginosa infections can be difficult due to its natural resistance to antibiotics . When more advanced antibiotic drug regimens are needed adverse effects may result . </P>

Despite all its virulence factors what type of pathogen is pseudomonas aeruginosa