Nokea
In the epidemiological terminology human host is referred to as
- A. Soil
- B. Seed
- C. Extrinsic factor
- D. none of them
Correct Answer: A
Rationale: In epidemiology, 'soil' refers to the environment or host where the pathogen (seed) grows.
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The vector responsible for leishmaniasis is:
- A. mosquito
- B. bugs
- C. tsetse flies
- D. sandflies
Correct Answer: D
Rationale: Sandflies are the vectors responsible for transmitting leishmaniasis.
What type of disease is rabies?
- A. Zoonotic
- B. Non-infectious
- C. Vector-borne
- D. Foodborne
Correct Answer: A
Rationale: Rabies is a zoonotic disease transmitted from animals to humans.
Contrast the changes in death rates due to cancer, heart disease, and cerebrovascular diseases.
- A. Heart disease and cancer rates increased initially but stabilized or declined, while cerebrovascular diseases declined steadily.
- B. All three diseases showed consistent declines.
- C. Cancer rates increased, while heart disease and cerebrovascular diseases decreased.
- D. Heart disease rates increased, while cancer and cerebrovascular diseases decreased.
Correct Answer: A
Rationale: Heart disease and cancer initially rose but later stabilized or declined, while cerebrovascular diseases showed steady declines due to improved treatments and risk factor management.
The measure of central location generally preferred for additional statistical analysis is the:
- A. Mean
- B. Median
- C. Midrange
- D. Mode
Correct Answer: A
Rationale: The mean is used in further computations due to its mathematical properties.
Demographic gap means
- A. Differences in sex ratio
- B. Differences between age-specific birth and death rates
- C. Differences between birth and death rates
- D. Differences in child and women ratio
Correct Answer: C
Rationale: Demographic gap refers to the difference between birth and death rates in a population, indicating population growth or decline.