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bacterial infection

Cultural  
  1. 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.

A post mortem examination found Lois died from a sudden and severe lack of oxygen to her vital organs, likely caused by breathing in her first stool, and the onset of bacterial infection.

From BBC • May 11, 2026

Cholera, a dangerous bacterial infection that causes severe diarrhea and can be fatal without treatment, may be significantly reduced through diet.

From Science Daily • Apr. 7, 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

Her stomach issues also have not improved, and a doctor in Colombia has diagnosed her with a severe bacterial infection.

From Slate • Feb. 3, 2026

They didn't realize that pus was ominous evidence of a bacterial infection.

From "Ambushed!" by Gail Jarrow

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