Question

Autopsy conducted on an individual who had died of pneumonia revealed bluish-green pus filling the lung. The causative agent of pneumonia was most likely to be
Proteus vulgaris

Escherichia coli

Salmonella typhi

Pseudomonas aeruginosa

Staphylococcus aureus

Answer 1

Answer:

The agent causing the pneumonia, where bluish-green pus was found, is most likely Pseudomonas aeruginosa.

Explanation:

Pseudomona aeuriginosa is a gram-negative bacteria that is one of the main causes of hospital-acquired infections, including pneumonias in mechanically ventilated patients.

One of the characteristics of P. aeuriginosa is the formation of a bluish-green pus, since it has the capacity to form cyanide-based blue pigment upon contact with the organic tissues it infects. This is the reason why previously P. aeruginosa was called a pyocyanic bacillus.

    The other options are not correct because the only bacterium that produces blue-green pus is P. aeruginosa.