New Delhi: The Centre on Saturday directed the states and UTs that no fresh registrations of healthcare and frontline workers will be allowed as some ineligible beneficiaries in this category were getting their names enlisted for vaccination against COVID-19 in violation of rules.Union Health Secretary Rajesh Bhushan, in a letter, said registration of persons aged 45 years and above will continue to be permitted on Co-WIN portal, and asked the states/UTs to ensure universal vaccination of already registered healthcare workers (HCWs) and frontline workers (FLWs) at the earliest.The countrywide vaccination drive was rolled out on January 16 with HCWs getting inoculated and the vaccination of FLWs started from February 2.The next phase of.