M184-2

Eye: Haemophilus influenzae (sample contaminated with group B streptococcus)  – Shipped February 11, 2019

HISTORY

A simulated eye swab collected from an 83 year old patient with red eye was sent to category A laboratories.

Participants were expected to identify Haemophilus influenzae.

MAIN EDUCATIONAL POINTS from M184-2

1. Most cases of conjunctivitis have a viral etiology.
2.  H. influenzae isolates from conjunctivitis are usually un-encapsulated and therefore non-typeable.

Full critique (PDF)