Archana Gulia*
Coronavirus disease (2019) has become global pandemic disease with top threat to human health in 2019, there is a race going between vaccine makers to develop covid-19 vaccines, as vaccine development is a typical longest thing to develop with safety and efficacy, to meet challenges. There’s been urgent need for therapeutic counter measure for rapid developing virus for controlling the outbreak, first case of Covid was firstly seen In December, from then there are variable attempts to get and generate suitable vaccine in labs. The fastest vaccine trial had been done is corona vaccine with large trials, vaccine made by Pfizer and Biotech have done firstly tested immunization and got approved for vaccine for emergency use. From years there been trials going on related to corona virus which causes SARS – severe acute respiratory syndrome and efforts have paid off spectacularly
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