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

It's a protozoan, similar to the malaria parasite.

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

This is the protozoan, not yet as famous as he should be, who seems to be telling us everything about everything, all at once.

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

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

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

The broadest definition of “parasite” includes pathogens such as bacteria, viruses, fungi and protozoans.

From Scientific American ● May 18, 2022

His companion guide to garden science is a learned romp through plant biology; solar energy and soil nutrients; the movement of vines; and “fellow gardeners”, from single-celled protozoans to beetles.

From Nature ● Mar. 20, 2018

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