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Latent infection

3:21

Tuberculosis (TB): Progression of the Disease, Latent and Active Infections.

3:00

The Importance of Latent TB Infection Testing and Treatment

1:42

Treating Latent Tuberculosis

1:53

Latent Infection

2:03

Why Should I Get Tested for Latent TB?

A subclinical infection is an infection that, being subclinical, is nearly or completely asymptomatic. A subclinically infected person is thus an asymptomatic carrier of a microbe, intestinal parasite, or virus that usually is a pathogen causing illness, at least in some individuals. Many pathogens spread by being silently carried in this way by some of their host population. Such infections occur both in humans and nonhuman animals. An example of an asymptomatic infection is a mild common cold that is not noticed by the infected individual. Since subclinical infections often occur without eventual overt sign, their existence is only identified by microbiological culture or DNA techniques such as polymerase chain reaction.