Self-replicating mRNA Covid-19 vaccines:
GS Paper 3: Topics Covered: Developments in Science and Technology. Context: A California based pharmaceutical company has developed ARCT-154, a self-amplifying mRNA vaccine against Covid-19 infection. Benefits: It offered 95% protection against severe Covid-19 and 55% against Covid infection. What are mRNA vaccines? An mRNA vaccine use messenger RNA that encodes the …