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An asymptomatic carrier is a person or other organism that has become infected with a pathogen, but shows no signs or symptoms. [ 1 ] Although unaffected by the pathogen, carriers can transmit it to others or develop symptoms in later stages of the disease.
The 'long-term nonprogressors' term is used for HIV carriers only but the wide term asymptomatic carrier is well known for ... Wikipedia® is a registered ...
Typhoid Mary, pictured above in a 1909 tabloid, was a famous case of a subclinical infection of Salmonella enterica serovar.. A subclinical infection—sometimes called a preinfection or inapparent infection—is an infection by a pathogen that causes few or no signs or symptoms of infection in the host. [1]
This early or mild stage of infection whose symptoms stay below the level of clinical detection is called subclinical infection [7] and the individual concerned is called an asymptomatic carrier of the disease. For example, in HIV/AIDS, the incubation period lasts years longer than the latent period.
Human alphaherpesvirus 3 virion − a herpesvirus known to infect humans. It causes chickenpox (varicella), a disease most commonly affecting children, teens, and young adults, and shingles (herpes zoster) in adults.
The most notorious carrier of typhoid fever, but by no means the most destructive, was Mary Mallon, known as Typhoid Mary. [104] [87] Although other cases of human-to-human spread of typhoid were known at the time, the concept of an asymptomatic carrier, who was able to transmit disease, had only been hypothesized and not yet identified or ...
[28] [29] [30] Asymptomatic carriers tend not to get tested. [30] [31] [32] Persons with asymptomatic COVID-19 infection can have the same viral load as symptomatic and presymptomatic cases, and are able to transmit the virus. [8] However, the infectious period of asymptomatic cases has been observed to be shorter with faster viral clearance. [8]
If the infectious period starts before the onset of the symptoms of the disease (i.e. the end of the incubation period), then asymptomatic carriers can unwittingly spread the disease in the community. [5]