An antifreeze is an additive which lowers the freezing point of a water-based liquid. An antifreeze mixture is used to achieve freezing-point depression for cold environments and also achieves boiling-point elevation (anti-boil) to allow higher coolant temperature.
The strains of virus the trivalent vaccine protects against two A viruses (an H1N1 and an H3N2) and an influenza B virus. The quadrivalent vaccine adds another B virus to the vaccine which helps expand the level of protection to the recipient.
The quadrivalent is not as widely available as the trivalent vaccination, however, there are ample supplies of the trivalent vaccination so far in the flu season. Getting vaccinated is the best way you can protect you and your family this year from becoming ill with the flu.his entry was posted in Flu Vaccination Uncategorized and tagged flu vaccine HealthCare for Business influenza quadrivalent flu vaccine trivalent flu vaccine on October 24, 2013 by meghan.