GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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16 & 9 respectively
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9 & 16 respectively
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16 & 16 respectively
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9 & 9 respectively
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Detailed explanation-1: -Influenza A viruses are classified by subtypes based on the properties of their hemagglutinin (H or HA) and neuraminidase (N or NA) surface proteins. There are 18 different HA subtypes and 11 different NA subtypes. Subtypes are named by combining the H and N numbers – e.g., A(H1N1), A(H3N2).
Detailed explanation-2: -The H5N1 influenza virus has thus far resulted in very limited human-to-human transmission. However, it has an exceptionally high fatality rate of more than 60%, which is in sharp contrast with the 2009 H1N1 influenza virus fatality rate of around 1% (WHO 2009a).
Detailed explanation-3: -The influenza A H1N1 virus is a member of the family Orthomyxoviridae (a group of RNA viruses). Type A is one of the three major types of influenza viruses (the other two being types B and C).