Thiomersal is a compound used to prevent bacterial and fungal growth in some inactivated (in which the virus has been killed) vaccines provided to countries in multi-dose vials.
Thiomersal is a compound containing ethyl mercury used to prevent bacterial and fungal growth in inactivated (in which the virus has been killed) vaccines presented in multi-dose vials.
Most important, the new technique enables the BCG vaccine, and potentially other bacterial and viral based vaccines, to be dried without the traditional problems associated with standard freezing.