Can algae cause disease? Can Protozoa cause disease?
Algae have toxic blooms in the water and these can be harmful to human health, especially if the toxins are concentrated in shellfish such as mussels. Protozoa can certainly cause disease. The malaria parasites Plasmodium falciparum and Plasmodium vivax are both protozoa that cause disease. Sleeping sickness caused by the protozoan Trypanosoma brucei and amoebic dysentery are other examples.
