Bacteria, Protist, & fungi
Bacteria
Hantavirus pulmonary syndrome is a very infectious disease which starts off with flu-like symptoms but can progress rapidly and become life-threatening. There are several types of hantavirus which can infect humans and cause hantavirus pulmonary syndrome. The virus is carried by rodents, such as the deer mouse. In most cases, infection occurs by inhaling the viruses that rodents expel in their urine and feces.
Fungi
Lichens contribute to Yosemite’s visual character by streaking colorful patterns on prominent cliff faces. Like the picture above. They try to scrub the lichens off because the diversity and distribution of lichens tell a great deal about air quality and the level of certain types of pollution, especially nitrogen, in the park. Lichens are intimately connected to their environment.