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With reference to the H3N2 influenza, consider the following statements:
  1. H3N2 is a seasonal virus and the occurrence of influenza infections normally peaks during season changes.
  2. There is a vaccine for seasonal flu that also covers H3N2.
Which of the statements given above is/are correct?
  • a)
    1 only
  • b)
    2 only
  • c)
    Both 1 and 2
  • d)
    Neither 1 nor 2
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
With reference to the H3N2 influenza, consider the following statement...
Recently, the Health Ministry confirmed that at least two people have succumbed to the H3N2 subtype of seasonal influenza in India.
  • Influenza A H3N2 is a seasonal virus and the occurrence of influenza infections normally peaks during season changes.
  • Symptoms- Fever, body ache, sore throat, cough, runny/blocked nose and a few shortness of breath.
  • It can spread from person to person and while anyone can get infected- older, adults and younger children are at a higher risk from H3N2.
  • The method of testing for H3N2 is also similar to COVID-19 testing – RTPCR.
  • There is a vaccine for seasonal flu that also covers H3N2.
Seasonal influenza:
  • According to WHO, seasonal influenza is an acute respiratory infection caused by influenza viruses.
  • There are 4 types of seasonal influenza viruses, types - A, B, C and D. In which Influenza viruses A, B, and C can infect humans.
  • Influenza A viruses are further classified into subtypes according to the combinations of the hemagglutinin (HA) and the neuraminidase (NA), the proteins on the surface of the virus.
  • There are 18 different subtypes of HA, which are numbered H1 through H18. Similarly, there are 11 different subtypes of NA, numbered N1 through N11.
Hence both statements are correct.
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With reference to the H3N2 influenza, consider the following statements: H3N2 is a seasonal virus and the occurrence of influenza infections normally peaks during season changes. There is a vaccine for seasonal flu that also covers H3N2.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer?
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