Coronavirus

Studying the disease

Antibodies: Proteins in blood that the body produces to fight a foreign substance like a virus. Asymptomatic: Describes a person who has been infected by a pathogen (such as a virus) but has no symptoms of disease. Asymptomatic people might still be able to spread the virus that causes COVID-19. Cohort Study: A study in…

Antibodies: Proteins in blood that the body produces to fight a foreign substance like a virus.

Asymptomatic: Describes a person who has been infected by a pathogen (such as a virus) but has no symptoms of disease. Asymptomatic people might still be able to spread the virus that causes COVID-19.

Cohort Study: A study in which data from a group (cohort) of people are collected and analyzed over time to identify a common health outcome or exposure.

Incubation Period: Time between when a person is exposed to a pathogen and when they begin to develop symptoms.

Morbidity and Mortality Rate: The frequency with which illness and death occur in a population in a specific period of time.

Prospective Cohort Study: Study in which scientists track a cohort (group of people) over time and collect and analyze data to identify characteristics they have in common that might be associated with a disease or other health outcome.

Retrospective Cohort Study: Study in which scientists analyze data that has already been collected from a cohort (group of people) over time to identify characteristics they have in common that might be associated with a disease or other health outcome.

Risk Factor: Behavior, environment, or characteristic of a person associated with an increased risk of disease or other health outcome.

Serologic Test: Test used to detect antibodies to a specific pathogen in a person’s blood.

Seroprevalence: The level of a pathogen in a population, as measured in blood serum.

Shed: To release from the body.

Spectrum of Disease: Range of signs, symptoms, and severity of a disease.

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