Germany will only administer AstraZeneca’s Covid-19 vaccine to people aged 60 and above, Chancellor Angela Merkel said Tuesday, following the advice of the country’s vaccine committee. The move follows reports of rare blood clots in the brains of 31 people following the first dose since the shots started being administered in the country.Germany will only administer AstraZeneca’s Covid-19 vaccine to people aged 60 and above, Chancellor Angela Merkel said Tuesday, following the advice of the country’s vaccine committee. The move follows reports of rare blood clots in the brains of 31 people following the first dose since the shots started being administered in the country.