Which of the following disease is related to Corona virus?
- (a)MERS
- (b)SARS
- (c)COVID-19
- (d)All of the above
Answer
D
Why
Correct — D, all of the above. MERS (Middle East Respiratory Syndrome), SARS (Severe Acute Respiratory Syndrome) and COVID-19 are all diseases caused by coronaviruses — MERS-CoV, SARS-CoV and SARS-CoV-2 respectively.
Why the others are wrong
- (a)MERS — MERS is indeed a coronavirus disease, but it is not the only correct one — SARS and COVID-19 also qualify.
- (b)SARS — SARS is a coronavirus disease, but so are MERS and COVID-19, so 'all of the above' is correct.
- (c)COVID-19 — COVID-19 is a coronavirus disease, but MERS and SARS also are, making (d) the complete answer.
Concept
Coronaviruses are a family of enveloped RNA viruses. Three have caused major outbreaks: SARS (2002-03, SARS-CoV), MERS (2012, MERS-CoV) and COVID-19 (2019-, SARS-CoV-2).
All three listed diseases are coronavirus-caused, so the inclusive option (d) is correct.
Key facts
- SARS is caused by SARS-CoV (2002-03 outbreak).
- MERS is caused by MERS-CoV (2012 onward).
- COVID-19 is caused by SARS-CoV-2 (2019 onward).
- All three are coronaviruses (RNA viruses).
Study next
Coronaviruses and viral diseasesCOVID-19 pandemic (SARS-CoV-2)SARS and MERS outbreaksRNA viruses and epidemiology
Common traps
- Selecting only one disease when all three are coronavirus-caused
- Confusing the virus (SARS-CoV-2) with the disease (COVID-19)
'Which disease(s) relate to coronavirus' — inclusive answer.
Related PYQs
No directly related past PYQ was found.
Practice
- practice — not a real PYQ
COVID-19 is caused by which virus?
- (a)SARS-CoV-2
- (b)MERS-CoV
- (c)H1N1
- (d)Ebola virus
Answer(a) SARS-CoV-2.
- practice — not a real PYQ
Coronaviruses store their genetic material as:
- (a)RNA
- (b)DNA
- (c)Both RNA and DNA
- (d)Protein only
Answer(a) RNA.