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.
There are currently 2 types of vaccines available for H1N1 and the seasonal flu: 1  An injectable form, given with a syringe, does not contain a live form of the virus. 2  An intranasal form, which is administered as a mist in your nose, contains a weakened live form of the virus.