Multiple Choice Questions on Disease and Epidemiology

Normal flora

Corynebacterium in the eye

Mutualism

A type of symbiotic relationship that benefits both organisms.

E. coli in the intestine

Provides vitamin K to the host, an example of mutualism.

Sporadic disease

A disease that occurs occasionally in a population.

Contagious disease

A highly communicable disease that spreads easily from person to person.

Reservoir

The natural source of a pathogen.

Droplet transmission

Transmission that occurs through droplets released during coughing or sneezing.

Period of incubation

The period between the initial infection and the onset of symptoms.

Nosocomial infection

An infection acquired in healthcare settings.

Pandemic

A disease that is widespread, such as AIDS worldwide.

Secondary infection

An infection caused by an opportunist after the primary infection.

Father of epidemiology

John Snow, known for identifying the source of a cholera outbreak.

Direct contact transmission

The spread of disease through physical contact, such as kissing or touching.

Prodromal period

The phase of disease development that involves mild, early symptoms like fatigue.

Chronic disease

A disease that develops slowly and lasts a long time.