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.
addition to the trivalent strains. There are seven types of flu vaccine available*: TrivalentâProtects against 3 strains of influenza: 1. Standard dose, inactivated influenza vaccine, which is the traditional inactivated seasonal flu vaccine. This is given as an injection into the muscle, and is recommended for people aged 6 months and older. This