Dr. Louche, a microbiologist is trying to identify a microscopic organism that is causing a respiratory syndrome that is occurring in a small town in Britannia. Using the data that he has gathered in the table below, what is the organism that is most likely causing this illness?

This organism is a single-celled fungi.


This organism is a photosynthetic protist.


The organism is a virus.


The organism is an animal-like protist.