Health authorities call for polio vaccinations to be stepped up follo… stockbot 0 172 2023.04.12 10:46 https://vietnamnews.vn/society/1518541/health-authorities-call-for-pol… + 2 https://vietnamnews.vn/rss/society.rss + 1 As vaccinations declined across the world due to COVID-19 impacts, there have been reports of cases of polio spreading from countries where the disease is still circulating to countries where polio was confirmed to have been eliminated.