Thesaurus.com
Dictionary.com
Definitions

infect

[in-fekt] / ɪnˈfɛkt /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

"For reasons we don't understand, HIV really wants to use CCR5 receptors to infect cells," Sacha said.

From Science Daily Aug. 13, 2026

But because Ebola strains like the Zaire variant were so lethal, they quickly ran out of new people to infect before they could move on to another area.

From The Wall Street Journal Aug. 6, 2026

Already, mosquito-borne diseases kill more than 1 million people and infect about 700 million worldwide each year.

From Slate Aug. 4, 2026

The issue is further complicated by bacteriophages, which are viruses that infect bacteria.

From Science Daily Jul. 17, 2026

The unknown agent could infect monkey cells and pop them.

From "The Hot Zone" by Richard Preston

The virus that sparked a global pandemic still regularly infects, disables and kills hundreds of people per week.

From Salon Aug. 6, 2026

The U.K. also announced sanctions against hackers responsible for Lumma Stealer, malware that sucks up sensitive information from devices it infects.

From The Wall Street Journal Jul. 13, 2026

When E. multilocularis infects a person or animal, it can produce cancer-like cysts in the liver and, in some cases, other organs.

From Science Daily Jun. 11, 2026

It uses a common cold virus that normally infects chimpanzees but has been genetically engineered to make it safe for people.

From BBC May 22, 2026

Provided that each victim thereby infects on the average more than one new victim, the bacterium will spread, even though the first host happens to die.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond

Fifty-five people have been infected with E. coli or salmonella in connection with the outbreak, the health agency said, including two people who contracted both pathogens.

From The Wall Street Journal Aug. 21, 2026

However, around one in five people who are infected develop a fever and moderate symptoms such as body aches, vomiting and diarrhea.

From Los Angeles Times Aug. 21, 2026

Experts believe that midges infected with the potentially deadly disease were blown over the border from England, where there are currently 439 cases, external.

From BBC Aug. 17, 2026

The judge erred in finding there was a substantial chance Patterson would be held in solitary confinement for years to come, and this "infected" his decision, the prosecution argued.

From Barron's Aug. 17, 2026

During the run Brian lost twelve pounds, mostly in fluids, though he drank river water constantly to make up for it, and his hands became infected from bacteria in the water.

From "The River" by Gary Paulsen

Sealing off: Leronlimab blocks what's left of the virus from infecting immune cells -- the equivalent of sealing off the room with a water-tight valve.

From Science Daily Aug. 13, 2026

This week government agencies linked Taylor shredded iceberg lettuce—served at Taco Bell locations—to cyclosporiasis illnesses infecting thousands of people in five states.

From The Wall Street Journal Jul. 18, 2026

In an interview with the Reuters news agency, Gaston urged the child and her mother to go to a health centre, as they risked "worsening their health" and "infecting their relatives".

From BBC Jun. 17, 2026

With hantavirus, the incubation period can take up to six weeks, so people must be isolated for a really long time to ensure they won’t get sick and start infecting others.

From Slate May 16, 2026

The ones causing the epidemic to grow — the ones who were infecting two and three and four and five others with their disease — were the remaining 168.

From "The Tipping Point" by Malcolm Gladwell




Vocabulary lists containing infect


Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training