Dictionary.com
Thesaurus.com

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.)


Discover More

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.

See Examples For:

Mentally he is quite fragile, and when he becomes physically ill from a bacterial infection, he suffers a mental breakdown.

From The Wall Street Journal ● Jul. 23, 2026

Lyme disease is a bacterial infection that is spread through the bite of infected black-legged ticks — also known as deer ticks.

From Los Angeles Times ● Jun. 25, 2026

Among them was a pregnant mother whose toddler was hospitalized; she said she caught his bacterial infection and had a miscarriage at 20 weeks.

From Salon ● Jun. 22, 2026

The ministry said Rivera's "physical and neurological deterioration" was "a consequence of a bacterial infection caused by the COVID-19 virus."

From Barron's ● May 31, 2026

Thinking that he might have some kind of bacterial infection, they gave him injections of antibiotics, but the antibiotics had no effect on his illness.

From "The Hot Zone" by Richard Preston

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training