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bacterial infection

Cultural

An infection caused by bacteria. The growth of many disease-causing bacteria can be halted by the use of antibiotics. (Compare viral infection.)

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Diseases caused by bacterial infections include diphtheria, gonorrhea, tuberculosis, and typhoid fever.

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.

Citrus greening disease is caused by a bacterial infection that is delivered by the gnawing of the Asian citrus psyllid.

From Slate • Apr. 20, 2026

According to Public Health Wales, Staph infection is a bacterial infection caused by staphylococcus - a germ that lives in the nose of one in three people.

From BBC • Mar. 28, 2026

A deadly virus and bacterial infection have killed at least 72 tigers at a private animal park in Thailand's north in recent weeks, authorities said.

From Barron's • Feb. 21, 2026

The study, published in Nature Chemical Biology, shows that an antibody created in the laboratory was able to eliminate a normally fatal bacterial infection in mice.

From Science Daily • Feb. 6, 2026

Soon after the accident, a bacterial infection caused his leg to swell up like a balloon from his knee to his ankle.

From "Death on the River of Doubt" by Samantha Seiple

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