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King Saud University
College of Applied Medical Sciences
Department of Community Health Sciences
CHS 334: Epidemiology 1
15
First midterm Exam (Students Model)
Time allowed: 30 minutes
------------------------------------------------------------:‫الرقم‬
Date:
/1432
------------------------------------------------:‫االســـــــــــم‬
Please write True or False between brackets and correct the false question (s) by
underlining the false word(s) and write it (them) under each question. Non corrected false
question (s) will be given zero:
( marks)
1. Epidemiological studies are qualitative rather than quantitative
(
)
-------------------------------------------------------------------------------------------------------------------2. Point epidemic is a gradual occurrence in disease frequency over long periods of time (
)
-------------------------------------------------------------------------------------------------------------------3. The exposure in noncommunicable diseases, is a microorganism while the exposure in
communicable diseases is a factor that initiates the disease
(
)
-------------------------------------------------------------------------------------------------------------------4. In the epidemiological triad, all host factors are called “extrinsic factors” while the Environmental
factors are called “intrinsic factors”.
(
)
-------------------------------------------------------------------------------------------------------------------Please circle the correct answer:
( marks)
1. It is the ability of the infectious agent to produce the disease
a) Pathogenicity
b) Virulence
c) Infectivity
d) Convalescence
2. Spray with relatively large, short-range aerosols produced by sneezing, coughing, or even
talking is called:
a) Droplet spread
b) Droplet nuclei
c) Indirect mode of transmission
d) Vehicle borne transmission
3. The diseases which their agents are not precisely known are called:
a) Idiopathic
b) Zoonoses
c) Infectious
d) Anthroponoses
Please fill the empty space with the correct word (s):
( marks)
1. The word epidemiology comes from the Greek words epi, meaning -------------------------------------demos, meaning -------------------- and logos, meaning ---------------------------2. ------------------------------------------------------- are diseases neither caused by infectious agents nor
transmitted from one person to another.
3. --------------- ---------------------- is a phase of infectious diseases where the typical signs and
symptoms of the diseases are present
2