Campylobacter

gram negative typically curved or “S” shaped rods (“gull wings”). It is difficult to visualise with safranin counterstain. Use carbol fuchsin as counter stain. (This photo has been digitally enhanced)

gram negative typically curved or “S” shaped rods (“gull wings”). It is difficult to visualise with safranin counterstain.

colonies are translucent and moist in appearance.

On CCDA colonies are grey/white or creamy grey in colour and moist in appearance.

They may appear as a layer of growth over the surface of the agar (like oil spill) - not seen on this picture.

See the difference between the coliform and Campylobacter colonies.