Vaccine and the New Covid-19 strains

Vaccination drive has been going on in the country with full force but with the emergence of the new coronavirus strains in certain states have left people thinking over the efficacy of these vaccines. Dr. M.C. Misra, former AIIMS director, New Delhi, talks about the vaccines and the new strains The information till now about the efficacy and the immunogenicity of the Covishield suggests that about 60% to 70% immunity is developed after the dose only. This why according to the WHO’s directions a gap of 8 to 12 weeks…