Slovakia on Tuesday suspended first doses of the AstraZeneca Covid-19 vaccine, the health ministry said, after earlier signalling it was investigating the case of a vaccinated patient who died from a blood clot. "Only people waiting for their second dose of this vaccine are currently being vaccinated with AstraZeneca," the health ministry said in a statement. "Using this company's vaccine for first-time doses has been suspended." juh/mas/jj