Delta variant 60% more transmissible, reduces vaccine effect, UK experts say

The Delta variant is 50% more transmissible than the Alpha variant, first discovered in the UK, experts from the National Centre for Disease Control (NCDC) and the CSIR Institute of Genomics and Integrative Biology (IGIB) said. The rapid surge in cases during Delhi’s fourth Covid-19 wave was mainly driven by the…

Why WHO approval is not enough for Chinese Covid-19 vaccines

Recently, countries such as Saudi Arabia, the UAE, Bahrain and Philippines have expressed concerns over the approval granted to Chinese vaccines and their efficacy. China has developed two Covid-19 vaccines that have been approved by the World Health Organisation (WHO). These are Sinovac and Sinopharm. China has…