2020-04-13T000000Z_1031650801_RC2E3G92HP2W_RTRMADP_3_HEALTH-CORONAVIRUS-CHINA-DIPLOMACY

Photo: A woman passes by a billboard depicting Chinese President Xi Jinping as the spread of the coronavirus disease (COVID-19) continues in Belgrade, Serbia, April 1, 2020. The text on the billboard reads "Thanks, brother Xi". Picture taken April 1, 2020. Credit: REUTERS/Djordje Kojadinovic

Photo: A woman passes by a billboard depicting Chinese President Xi Jinping as the spread of the coronavirus disease (COVID-19) continues in Belgrade, Serbia, April 1, 2020. The text on the billboard reads “Thanks, brother Xi”. Picture taken April 1, 2020. Credit: REUTERS/Djordje Kojadinovic