Contest strengthens disease prevention communication for ethnic small … stockbot 0 266 2020.11.27 03:12 http://vietnamnews.vn/society/813096/contest-strengthens-disease-preve… + 36 https://vietnamnews.vn/rss/society.rss + 20 Ethnic minority small traders were provided with knowledge and skills on disease prevention, especially COVID-19, at a contest in the mountainous province of Hà Giang on Wednesday.