Consider the following statements :
- 1.In tropical regions, Zika virus disease is transmitted by the same mosquito that transmits dengue.
- 2.Sexual transmission of Zika virus disease is possible.
Which of the statements given above is/are correct ?
Show answer
Answer: C. Statement 1 is correct: in tropical regions Zika is spread mainly by the Aedes aegypti mosquito, which also spreads dengue and chikungunya. Statement 2 is correct: the WHO confirms that Zika can be passed on through sex. So both 1 and 2.
Watch for: Watch for the idea that a mosquito-borne disease can only spread through mosquitoes. Zika also spreads through sex and from mother to child.
Why the other options are wrong
- A. Wrong because sexual transmission of Zika is also possible.
- B. Wrong because Aedes aegypti does spread both Zika and dengue.
- D. Wrong because both statements are true.
Source to check: WHO Fact Sheet 'Zika virus' (who.int); NCERT Class 12 Biology, Chapter 8 'Human Health and Disease' (Aedes-borne diseases)
Answer from the official UPSC key. Written and fact-checked by AI against the official key. Spotted a mistake? Report it.