UPSC Essentials | Daily subject-wise quiz : Science and Technology MCQs on Instrument Landing System, H1N1 influenza and more (Week 177)
Statement 1 is correct as H1N1 influenza is a subtype of the influenza A virus. Statement 2 is also correct, as H1N1 influenza is an infectious viral illness that causes respiratory tract infections. Statement 3 is incorrect, since most cases of H1N1 influenza do not lead to acute respiratory distress. Therefore, the correct answer is (b) Only two.
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