Note: The epidemiology quiz has five questions. Each has two options one true and other false.

Question 1:- What is exponential growth

A-Exponential growth is a specific way that a quantity may increase over time. It occurs when the instantaneous rate of change of a quantity with respect to time is proportional to the quantity itself

B-It occurs when the instantaneous rate of change of a quantity with respect to time is only a non-zero constant.

Question 2-The doubling time of a spread of a virus implies the time

A-The doubling time is the time it takes for a population of the virus to reduce to half in size/value.

B- The doubling time is the time it takes for a population of the virus to double in size/value. It is applied to population growth or a virus spread.

Question 3:-The flattening of the curve with reference to epidemics implies

A-Flattening the curve means slowing the spread of the epidemic so that the peak number of people requiring care at a time is reduced, and the health care system does not exceed its capacity

B-Flattening the curve is a form of indirect protection from infectious disease that occurs when a large percentage of a population has become immune to an infection

Question 4:-This term herd immunity implies

A-Herd immunity means slowing the spread of the epidemic so that the peak number of people requiring care at a time is reduced, and the health care system does not exceed its capacity

B-Herd immunity is a form of indirect protection from infectious disease that occurs when a large percentage of a population has become immune to an infection

Question 5- Morbidity and co-morbidity together implies

A-The presence of one or more ailments other than the disease of more interest such as whether the patient has COVID-19 positive or not.

B-It is a measure of the number of deaths in a particular population, scaled to the size of that population, per unit of time.

Answers

Answer 1-A

Explanation

Exponential growth or decay is commonly observed in many physical phenomena like charging and discharging of a capacitor, radio-active decay of nuclei, and in epidemiology.

Answer 2- B

Explanation

The term is used for comparing two different exponential growth, how fast or slow it is. For example, in India when the coronavirus started spreading in March 2020, the total cases were approx 1200 and the doubling rate was 3 days. Now in August 2020, the total cases are approx 2.4 million and the doubling rate is 17 days.

Answer 3:- A

Explanation

 In epidemiology, flattening the curve term is used for a strategy in the context of controlling the spread of virus so that at any given time the number of infected patients does not exceed the capacity of health care to treat them. However, geometrically speaking, it means that you can draw curves of many shapes, some heaving sharp peaks, others having more broaden peak, however, keeping the total area same

Answer 4:-B

Explanation

It is important to know that what protects us from disease is not a medicine but our own immune system. Medicine or vaccine may just be supportive and it is observed that typically when 60-80% population gets the infection, and immunity called the herd immunity develops in the population.

Answer 5:-A

Morbidity and co-morbidity together imply the presence of other factors like high blood pressure, diabetes, heart ailments which will worsen the chances of patient survival when infected by a primary factor-like COVID 19.