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Definitions

infectious

[in-fek-shuhs] / ɪnˈfɛk ʃəs /


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.

These included initiatives addressing pandemic preparedness and outbreak response, health security, and infectious disease treatment.

From Slate • Jun. 9, 2026

But the energy of the production is infectious.

From Los Angeles Times • May 30, 2026

"When an animal has become sick from an infection their immune system is compromised which increases the risk of further disease exacerbation from other infectious agents that may have once been subclinical," Mishin explained.

From Science Daily • May 26, 2026

Corpses of Ebola victims are highly infectious and must be buried safely to contain the spread.

From The Wall Street Journal • May 24, 2026

A few years back, Farmer had talked him into training as an infectious disease specialist.

From "Mountains Beyond Mountains" by Tracy Kidder and Michael French




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