This set of Virology Multiple Choice Questions & Answers (MCQs) focuses on “Epidemiology”.
1. Which of the following is the study of the distribution of disease in populations?
a) Hematology
b) Epidemiology
c) Pedology
d) Rheumatology
View Answer
Explanation: Epidemiology is the study of the distribution of disease in populations. It is the study of the determinants and dynamics. It is effective in clarifying the role of viruses in the etiology of the disease.
2. The comparison of disease experienced in different population is expressed in the forms of __________
a) scale
b) intensity
c) rates
d) magnitude
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Explanation: The comparison of disease experienced in different populations is expressed in the forms of rates. The incidence rates and prevalence rates are two widely used rates and these rates may be affected by various attributes that distinguish one person from another.
3. Which of the following rate is the measure of frequency over time?
a) Death
b) Attack
c) Birth
d) Prevalence
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Explanation: The attack rate is the measure of frequency over time and it is also known as incidence rate and is used especially for the acute disease of short duration. For example, monthly or annual incidence.
4. Which of the following is the sudden occurrence of disease in a community?
a) Outbreak
b) Pandemic
c) Syndemic
d) Synergistic
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Explanation: An outbreak is the sudden occurrence of disease in a community. The community has never experienced the disease before or when the cases of that disease occur in numbers greater than expected in a defined area.
5. Which term can be used for the meningococcal infection attack rate above 15 cases per 100,000 people for 2 consecutive weeks?
a) Epidemic
b) Pandemic
c) Syndemic
d) Endemic
View Answer
Explanation: An epidemic is a term used for the meningococcal infection attack rate above 15 cases per 100,000 people for 2 consecutive weeks. Epidemic usually the spreading of a disease among a large number of people in the same place for some time.
6. Which of the following term is used for a disease found among a group of people?
a) Pandemic
b) Synergistic
c) Endemic
d) Syndemic
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Explanation: Endemic is the term used for a disease found among a group of people. For example, goiter. An infection is said to be endemic when the infection is constantly maintained at the baseline level in an area without external inputs.
7. Which of the following occurs over a large area such as entire countries or continents?
a) Pandemic
b) Synergistic
c) Endemic
d) Syndemic
View Answer
Explanation: A pandemic is a term used for an infection that occurs over a large area such as entire countries or continents. It affects the larger proportion of the population and has the potential to spread to multiple countries in today’s ease of global transportation.
8. Which of the following is the aggregation of two or more epidemics?
a) Endemics
b) Syndemic
c) Poly epidemic
d) Pandemic
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Explanation: The aggregation of two or more concurrent or sequential epidemics or disease clusters in a population with the biological interactions that exacerbate the prognosis and burden of disease is known as Syndemic or synergistic.
9. Which of the following is used in public health operations and research?
a) Molecular epidemiology
b) Seroepidemiology
c) Ecoepidemiology
d) geoepidemiology
View Answer
Explanation: Seroepidemiology is extremely useful in public health operations and research. For example, serological surveys were used to determine the prevalence and geographic distribution of hepatitis B and C viruses.
10. Indirect transmission occurs via fomites.
a) True
b) False
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Explanation: Indirect contact transmission occurs via fomites. Fomites are the material or objects that are likely to carry infection such as shared eating utensils, toys, handkerchiefs, towels, syringe, needles, etc.
11. The epidemiologic investigation of disease is done by geoepidemiology.
a) True
b) False
View Answer
Explanation: The epidemiologic investigation of disease is done by molecular epidemiology. The use of molecular biological techniques has been used for the identification of viral diseases.
Sanfoundry Global Education & Learning Series – Virology.
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