Happy Fourth of July to all of my readers in the U.S.! This week's case is a good reminder to think about food-borne illnesses as you go to picnics and cook-outs on this weekend.
The patient is an adult male with "explosive" watery diarrhea (like fireworks - sorry, bad pun) for the past several days. Round, slightly wrinkled-appearing objects measuring approximately 8-10 micrometers in diameter were seen as negative outlines on routine Trichrome stain:
These objects also stained clear to bright pink-red on modified trichrome stain (if you use your imagination, you can say that this slide is red, white and blue):