Question

The number of new cases of a disease in a given population during a given period of time is called __________.

A) Virulence B) Morbidity C) Prevalence D) Incidence

____5. Epidemiologists are interested in learning about ____________________ .

A) The causes of diseases and how to cure or control them

B) The frequency and geographic distribution of diseases

C) The causal relationships between diseases

D) How microbes move in the environment.

_____6. An epidemic will die out when the basic reproduction number (R0) is:

A)1 B) >1 C) >2 D) < 1 E) <2   

Answer 1

1.A number of new cases of a disease in a given populaton during a given period of time is called Incidence. option D

• prevalance is the actul no of alive species with disease in a perticular time.
• morbidity is used to describe how often is caused in a perticular area .the term is used to focus on death.
• virulence is nothing but the severity of infection described by incidence of disease and death rate of infection.

2. Epdiomiologist are intrested in learning about the cause of disease and how to cure or control them. option A

Explination

Epidiomiologist are the public health professionals who investigate pattern cause of disease and injury in human.they are the trained porfessionals in the field of epidemiology.

3. An epidemic will die out when the besic reproduction no (R0) is R0<1.The R0 is less than 1 the infection will spread slowly and it will eventially dieout.option D.

Explination

The higher the value of R0 the faster the epidemisc will progress..

when R0 > 1 Th einfection willl spread exponentially.