EU health ministers tasked the European Commission on Tuesday to issue common advice for the administration of a fourth Covid-19 vaccine dose in the European Union. The EU executive was “to draft a recommendation on the fourth vaccination dose in the shortest amount of time on a scientific basis,” German Health Minister Karl Lauterbach said. EU health ministers were meeting in Brussels to discuss the bloc’s future Covid-19 strategy as well as EU efforts to share vaccine doses with other countries. Lauterbach’s proposal for the commission to issue the advice to harmonize the EU’s position on th…