infect

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.

Ebola viruses normally infect animals, but outbreaks among humans can sometimes start when people eat or handle infected animals.

From BBC • May 24, 2026

They calculated that the virus’s infectiousness—an estimate of how many people one contagious person will infect on average—is 2.1.

From The Wall Street Journal • May 16, 2026

They infect in different ways and are classed in entirely different phylums, meaning they are not remotely related.

From Salon • May 11, 2026

One of them went on to infect six people "because of his active social life", the study said.

From Barron's • May 7, 2026

When he needed to buy eyeglasses, he let researchers infect him with malaria to study a new drug.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot