casual contact

American  

noun

1. the level of contact at which a person is not subject to contracting a communicable disease from another, especially nonsexual contact with a person infected with a venereal disease.

---

Example Sentences

But, perhaps most notable, only about half of the 30,000 children infected with hepatitis B got it from their mothers; the other half contracted it through casual contact, likely from other household contacts.

From The Wall Street Journal • Oct. 3, 2025

Scientists do not believe it can spread easily through casual contact, as seasonal flu can.

From Seattle Times • Feb. 18, 2023

Officials aren’t seeing spread from activities such as changing clothes in a dressing room, casual contact at a crowded festival or from gym equipment.

From Los Angeles Times • Aug. 10, 2022

Morrison, who had been deemed a casual contact after attending an event last week along with a COVID-infected person, said he has been cleared to fly interstate to Queensland after negative test results.

From Reuters • Dec. 15, 2021

Another part of the skinned anatomy touched the iron rail below, and the anatomist observed that this casual contact produced a convulsive twitching of the dead reptile's legs.

From Steam, Steel and Electricity by Steele, James W.