as in spreading
exciting a similar feeling or reaction in others
an infectious giggle that got the whole class laughing
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Recent Examples of infectious
Just one of the important agencies that HHS oversees is the Centers for Disease Control and Prevention (CDC), which helps to prevent and control infectious and chronic diseases.
—
A.j. Russo, Baltimore Sun, 3 Dec. 2024
In love, Explorers bring an infectious aura of enthusiasm and playfulness.
—Mark Travers, Forbes, 30 Nov. 2024
It can also be spread through close physical contact with an infectious person; casual contact does not spread the virus.
—Sandra McDonald, Los Angeles Times, 28 Nov. 2024
Though, bird flu virus levels have been found at high levels in raw milk and health officials believe raw milk is infectious to humans.
—Youri Benadjaoud, ABC News, 3 Dec. 2024
See all Example Sentences for infectious 
A.j. Russo, Baltimore Sun, 3 Dec. 2024
In love, Explorers bring an infectious aura of enthusiasm and playfulness.
—Mark Travers, Forbes, 30 Nov. 2024
It can also be spread through close physical contact with an infectious person; casual contact does not spread the virus.
—Sandra McDonald, Los Angeles Times, 28 Nov. 2024
Though, bird flu virus levels have been found at high levels in raw milk and health officials believe raw milk is infectious to humans.
—Youri Benadjaoud, ABC News, 3 Dec. 2024
See all Example Sentences for infectious
Thesaurus Entries Near infectious
Cite this Entry
“Infectious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infectious. Accessed 22 Dec. 2024.
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