dr amesh adalja. of thejohns of the johns hopkins of thejohns hopkins university centre for security. around 62% of voters in switzerland have backed their government s covid strategy, including a covid certificate showing proof of vaccination, recovery, or a negative test. switzerland is currently battling a surge in infections and the certificates are currently needed to access bars, restaurants, and football matches. the war in ethiopia has reached a critical point, with tigrayan rebels from the north claiming they re advancing ever closer to addis ababa, as they prepare to clash with government forces near the capital. the conflict, which began just over a year ago, has pitted combined groups from around the country against the prime minister abiy ahmed, who last week announced he would lead his army in battle. it has created a humanitarian disaster, and torn the country apart, with little sign of any resolution. our africa correspondent andrew