If the vaccine triggers an immune response, it is then tested in human clinical trials in three phases, explains WHO. In a series of explainers, the World Health Organisation (WHO) elaborated on how vaccines are developed, stored and thereafter shipped. Along with this, it also contains other ingredients — each of which are tested for safety in the manufacturing process — to keep the vaccines safe and effective. If the vaccine triggers an immune response, it is then tested in human clinical trials in three phases, explains WHO. “Specialised equipment” is used to keep the vaccine safe.

Source: Indian Express December 29, 2020 06:10 UTC