A new vaccine for the upcoming flu season is developed from an influenza isolate designated A/Shanghai/2/2013(HZN9). nomenclature means the isolate is O the second type A strain with HA 7 and NA 9 antigens isolated in Shanghai in 2013. O a type A with antigens HA 7 and NA 9 isolated in Shanghai in February 2013. O a type B strain with antigens HA 7 and NA 9, first isolated in February 2013. O a type A with 7 HA antigens and 9 NA antigens isolated in Shanghai in February 2013.

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Air Pollution

The excess accumulation of pollutants or undesirable alterations in the environment and its resources such as air, water, and land can be referred to as pollution. Pollution affects the components of the environment. Pollution is considered a global issue as it is showing harmful effects worldwide. Metropolitan cities are more impacted by pollution than countryside or villages.