Synonyms of infection

infection

noun

as in virus

an abnormal state caused by contact with harmful organisms (such as bacteria or viruses)

There is a viral infection spreading among the schoolchildren.

Related Words

• virus
• germ
• disease
• epidemic
• attack
• contagion
• contagious disease
• plague
• contagium
• illness
• bout
• lameness
• fever
• invalidism
• invalidity
• debility
• indisposition
• unsoundness
• pestilence
• spell
• pandemic
• debilitation
• decrepitude
• feebleness
• fit
• sickliness
• malaise
• ailment
• sickishness
• unhealthiness
• dysfunction
• malady
• unwellness
• ill
• bug
• sickness
• disorder
• weakness
• distemper
• pip
• frailty
• pest
• complication
• weakliness
• ail
• upset
• infirmity
• matter
• frailness
• condition
• complaint
• distemperature
• trouble
• affection
• affliction

Dissimilar Words

• fitness
• soundness
• health
• robustness
• hardiness
• wholeness
• shape
• healthiness
• wholesomeness
• heartiness
• wellness
• lustiness
• cure
• antidote
• fettle
• antivenom
• antivenin
• panacea
• elixir
• mithridate
• cure-all

Example Sentences

Recent Examples of infection

Palm Beach County is the first in the state this year to record a death from an infection of Vibrio vulnificus, a bacteria that is found in coastal waters and most commonly contracted by eating oysters and raw shellfish. — Angie Dimichele, Sun Sentinel, 25 July 2026

Seek prompt care for signs of infection such as warmth, redness or tenderness, or a fever over 100°F. — Samantha Agate, Charlotte Observer, 25 July 2026

Cyclosporiasis, a parasitic infection that causes nausea, fatigue, cramping and explosive diarrhea, can linger for weeks. — Oona Hanson, CNN Money, 25 July 2026

Gardeners can help prevent infection by keeping their plantings moist but not overly wet. — Tom MacCubbin, The Orlando Sentinel, 25 July 2026