protozoan

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

From Science Daily ● Dec. 21, 2025

A research team placed Halteria ciliates—a type of protozoan with hairlike organelles found in freshwater worldwide—in a petri dish with only chloroviruses, which infect green algae.

From Science Magazine ● Jan. 11, 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

These, under high magnification, turn out to be bacteria, living in symbiosis with the spirochetes and the protozoan, probably contributing enzymes that break down the cellulose.

From "The Lives of a Cell" by Lewis Thomas

Organisms that can survive in this suspended, or anabiotic, state, Yarzábal explained, include not just extremophile bacteria but also viruses, fungi, protozoa and microscopic animals called nematodes.

From Salon ● Apr. 20, 2025

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

You should make sure that you use only distilled, sterile or boiled water for your rinses, as tap water can contain small amounts of bacteria and protozoa that carry the risk of other infections.

From Seattle Times ● Oct. 31, 2022

Ben had awakened that morning, while it was still dark, with the butterflies, the old, invisible protozoa of fear that invaded the stomach on the days of contests or of testing.

From "The Great Santini" by Pat Conroy

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

From Reuters ● Oct. 1, 2022

Single-celled protozoans, for example, use some genes to make proteins that let them cling together in tiny colonies.

From New York Times ● May 4, 2018

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

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