Throat: Group C streptococcus, large beta-hemolytic colony – Shipped August 2011
A swab simulating a throat sample obtained from a 22 year old student with recurrent pharyngitis was sent to category A, B, and C laboratories.
Participants were expected to report group C streptococcus.
MAIN EDUCATIONAL POINTS from M112-1
- It is important to differentiate beta-hemolytic streptococci of the pyogenic group from those belonging to the S. anginosus group, which may be present as normal oro-pharyngeal flora.