But diapers aren't meant to safeguard against vapours or other elements in tear gas, so neither will a surgical mask. The N95 or X301 do not protect the wearer from pollution. Yu says the respirators block containments in particle form only, not gases like ozone and nitrogen dioxide.
Flu vaccine is an inactivated vaccine, meaning that it contains killed influenza virus. The killed influenza virus is injected into muscles or skin and stimulates the immune system to produce an immune response (antibodies) to the influenza virus.
Influenza vaccines, also known as flu shots or jabs, are vaccines that protect against influenza.[2] A new version of the vaccine is developed twice a year as the influenza virus rapidly changes.[2] While their effectiveness varies from year to year, most provide modest to high protection against influenza.[2][3] They decrease the number of missed ...