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Updated: May 7, 2026

Murine Oropharyngeal Aspiration Model of Ventilator-associated and Hospital-acquired Bacterial Pneumonia
Published on: June 28, 2018
Fatal Streptococcus anginosus-associated pneumonia in a captive Sumatran orangutan (Pongo abelii)
E A Ihms1, J B Daniels, C S Koivisto
1The Ohio State University College of Veterinary Medicine, Columbus, OH, USA.
Background:
Bacterial infections commonly affect the lungs and air sacs of orangutans; culture and identification is rarely performed and may have clinical relevance.
Methods:
Necropsy, histopathology and bacterial culture were performend on a captive adult male Sumatran orangutan with chronic air sacculitis. Bacterial speciation was confirmed by sequencing of the 16s-23s ribosomal DNA spacer region.
Results:
Necropsy revealed severe suppurative pneumonia. Moderate growth of Streptoccocus anginosus was recovered from the lungs.
Conclusions:
This is the first report of S. anginosus as a cause of fatal suppurative pneumonia in a non-human primate.
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