infectious(redirected from infectiousness)
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Related to infectiousness: communicable
1. (of a disease) capable of being transmitted
2. (of a disease) caused by microorganisms, such as bacteria, viruses, or protozoa
3. causing or transmitting infection
4. International law
a. tainting or capable of tainting with illegality
b. rendering liable to seizure or forfeiture
Caused by infection.