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infectious diseases

Cultural

Diseases caused by the growth of pathogenic organisms in the body. Some of these diseases may also be contagious diseases.

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.

There were no antibiotics to fight infectious diseases, no reliable antiseptics or anesthetics for surgeries.

From The Wall Street Journal • Apr. 14, 2026

Malaria continues to rank among the deadliest infectious diseases worldwide.

From Science Daily • Mar. 5, 2026

Ford was only transferred to an infectious diseases unit on 11 June after those treating her at Barnsley Hospital learned about the dog scratch.

From BBC • Mar. 5, 2026

It’s transmitted by close contact with someone who is infected or by touching a contaminated surface, said Dr. Neha Nanda, chief of infectious diseases and hospital epidemiologist for Keck Medicine of USC.

From Los Angeles Times • Mar. 4, 2026

Since Asian mainland infectious diseases were well established in Indonesia, New Guineans thereby gained long exposure and built up much more resistance to Eurasian germs than did Aboriginal Australians.

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

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023