What you need to know Cyprus, Luxembourg, Latvia and Sweden are the latest countries to suspend use of AstraZeneca’s Covid-19 vaccine following reports of possible side effects. The suspensions go against the advice of international medical agencies, which say there's no evidence the vaccine is linked to clotting. In Brazil, President Jair Bolsonaro has appointed the country's fourth health minister since the pandemic began. In the US, the White House is racing to prevent and prepare for a potential fourth coronavirus surge, as more transmissible variants spread across the country. Our liv...