protozoan

Giardia duodenalis is a microscopic protozoan parasite known for causing outbreaks of severe diarrhea.

From Science Daily ● Dec. 21, 2025

It’s not yet clear, however, exactly how the Amazonian variant wards off the protozoan invader.

From Science Magazine ● Mar. 7, 2023

By taking a deeper look at how this stealthy protozoan travels through our anatomy, we can develop better tools at disrupting its devastating pathways.

From Salon ● Nov. 1, 2022

One common protozoan disease known to occur in birds, which evolved from feathered dinosaurs, as well as in people is called trichomoniasis, caused by a parasitic protozoan.

From Reuters ● Oct. 1, 2022

There is another protozoan, called blepharisma, telling a long story about the chanciness and fallibility of complex life.

From "The Lives of a Cell" by Lewis Thomas

The host of life on ice includes bacteria, viruses, fungi, protozoa, even microscopic animals like nematodes, some dead and some alive in suspended animation.

From Salon ● Apr. 24, 2025

It seems miraculous that, over billions of years, our planetary circumstances enabled protozoa to evolve into people.

From New York Times ● Nov. 12, 2023

Bottom line: If you must have tropical milkweed, cut it down to the ground each fall before it goes to seed, to kill any overwintering protozoa and reduce its potential to spread to neighboring areas.

From Los Angeles Times ● Oct. 30, 2023

Food turns into compost through the hard work of small microorganisms like bacteria, fungi, and protozoa.

From National Geographic ● Sep. 26, 2023

Far from recognizing that protozoa were different in character from larger organisms, Leeuwenhoek’s work seemed to imply that they were the same.

From "The Invention of Science" by David Wootton

The researchers explored whether the holes had been caused by an infection involving microbes called protozoans.

From Reuters ● Oct. 1, 2022

The working group came up with 16 “climate-sensitive zoonotic pathogens of circumpolar concern”, consisting of 7 types of bacterium, 4 families of virus, 3 protozoans and 2 kinds of worm3.

From Nature ● Mar. 28, 2017

There he photographed protozoans called ciliates that were found for the first time only in 2007.

From Slate ● Oct. 31, 2014

Parasite-induced alteration of host behavior has been also been reported in viruses, bacteria, protozoans, nematodes and other microscopic creatures.

From Scientific American ● Jul. 8, 2013

The scoutmaster had given them a long lecture about disrupting nature—by the end of it, Jonah felt guilty about how many protozoans he’d probably killed.

From "Found" by Margaret Peterson Haddix