Correct answer: (d) Swine flu
Explanation
- A
AIDS
AIDS is caused by HIV, a retrovirus, not by H1N1. This option is not the key.
- B
Bird flu
Bird flu is typically associated with avian influenza strains such as H5N1, not H1N1 as ‘bird flu’. This option is therefore wrong.
- C
Dengue
Dengue is a flavivirus transmitted by Aedes mosquitoes, not an influenza H1N1 disease. This option is not the key.
- D
Swine flu
H1N1 influenza virus is the agent of swine flu (the 2009 pandemic strain was influenza A(H1N1)pdm09). This option is the official key.
Summary. Official key is (d) Swine flu. H1N1 is an influenza A subtype circulating in pigs and in humans after zoonotic events; the 2009 pandemic popularised the ‘swine flu’ name. HIV, H5N1-type bird flu and dengue viruses are different pathogens. Haemagglutinin (H) and neuraminidase (N) numbering identifies influenza subtypes. Only (d) matches H1N1.
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2021 · Q66 · General Studies · 2 marks
In the context of hereditary diseases, consider the following statements: 1. Passing on mitochondrial diseases from parent to child can be prevented by mitochondrial replacement therapy either before or after in vitro fertilization of egg. 2. A child inherits mitochondrial diseases