Several countries, after conducting studies, have approved the 'mixing and matching' strategy, which include the US, Sweden, Canada, China, UK, France and Thailand.
A study by French researchers shows that a three-dose regimen of COVID-19 vaccine increases the levels of antibodies in such patients.
The world is watching the UK and to a lesser extent Israel as two nations with high vaccination rates battle a new spike in COVID cases driven by more infectious variants
Does a high rate of vaccination mean a low death count in countries that are facing a surge of new Delta variant cases?
Congress leaders say vaccination is not a one-day fixture. National Advisory Group on Immunisation chairman says India aims to vaccinate 1 crore people daily.
The Co-WIN portal in Pune showed data of at least a lakh beneficiaries of Covid vaccine not matching with their actual vaccination status.
Facing the Delta variant threat, the UK decreased vaccine dose gap to eight weeks, after an increased dose gap of 10-12 weeks in Northern Ireland.
The social media giant said the tool will help people find places near them to get their vaccine doses.
SII says subsidized pricing only for initial or at-risk orders
The United States has halted the use of the Johnson and Johnson vaccine after several complaints of blood-clotting.