carrier state

Harboring without symptoms

A carrier state is the condition of harboring an infectious agent without showing symptoms of disease.

The carrier can still transmit the pathogen to others: Typhoid Mary remained in a carrier state for decades, infecting hundreds.

The term appears in discussions of hepatitis, HIV, and other infections where asymptomatic transmission complicates public health efforts.

Related

harboring · contagion · outbreak · epidemiology · spread · subclinical · reservoir · microorganism · surveillance · virus · herd immunity · asymptomatic carriers · incubation period · bacterium · typhoid · Typhoid Mary · zoonosis · public health

Opposites
disease manifestation

carrier stateacute infection

Fast-developing microbial disease

AIDS · acute illness · morbidity

infection status

carrier stateimmunity

Protected from harm

pathogen-free · sterile · uncolonized · non-infected · clearance

Family

state, carrier

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