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

Vibrio vulnificus is a bacterium that can cause a vibriosis infection, which in some cases can lead to necrotizing fasciitis, a fast-spreading bacterial infection of the tissue under the skin that appears to eat away at the body. — Mike Snider, USA Today, 8 Aug. 2026

Health officials and aid groups say many migrants fled South Africa without medication or medical records, raising fears of interrupted HIV treatment in a region with some of the world’s highest infection rates. — ABC News, 8 Aug. 2026

This can lead to infection risks from bacteria, parasites, and viruses. — Heidi Moawad, Verywell Health, 8 Aug. 2026

Although infections are rare, Vibrio vulnificus can cause an illness called vibriosis, often marked by vomiting, diarrhea and abdominal pain, as well as potentially severe skin infections. — Melissa Rudy, FOXNews.com, 7 Aug. 2026