infected

adjective

in·​fect·​ed in-ˈfek-təd How to pronounce infected (audio)
: having an infection : contaminated with an infective agent (such as a bacterium or virus)
an infected wound
Through a number of different means, these viruses persist at very low, hard-to-detect levels in infected cells.The Journal of the American Medical Association
She explains that leptospirosis bacteria are shed in the urine of infected animals.Tania Banak
The fungus produces as many as 1 million conidia per square centimeter of infected leaf surface.G. B. Lucas

Examples of infected in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Measles is airborne and spreads easily when an infected person breathes, sneezes or coughs. Alix Martichoux, The Hill, 14 Mar. 2025 Measles is caused by a highly contagious virus that’s airborne and spreads easily when an infected person breathes, sneezes or coughs. Devi Shastri, Chicago Tribune, 14 Mar. 2025 The virus is spread through direct contact or through the air from an infected person’s breathing, coughing and sneezing, the CDC says. Irene Wright, Miami Herald, 13 Mar. 2025 Measles is a highly contagious airborne virus that can stay in the air or on surfaces for up to two hours after an infected person has left the room. Tricia Escobedo, CNN, 12 Mar. 2025 See All Example Sentences for infected

Word History

Etymology

from past participle of infect

First Known Use

1534, in the meaning defined above

Time Traveler
The first known use of infected was in 1534

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Cite this Entry

“Infected.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/infected. Accessed 21 Mar. 2025.

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