Stretching the time between the first and second doses would greatly accelerate the rate at which people get at least partial protection. But some experts fear it could also lead to new variants.Stretching the time between the first and second doses would greatly accelerate the rate at which people get at least partial protection. But some experts fear it could also lead to new variants.Vaccination and Immunization, Politics and Government, Coronavirus (2019-nCoV), your-feed-healthcareRead More