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.
Flu vaccine supply is produced by private manufacturers, so the supply depends on them. The vaccine manufacturers originally projected that as many as 151 million to 166 million doses of injectable flu vaccine (i.e., inactivated and recombinant flu vaccines.) Approximately 21- 36 million of those vaccines will contain thimerosal.