Việt Nam to join Japanese dengue vaccine trials stockbot 0 87 2023.10.14 11:29 https://vietnamnews.vn/society/1595161/viet-nam-to-join-japanese-dengu… + 11 https://vietnamnews.vn/rss/society.rss + 9 A person infected with a virus type can gain lifelong immunity to that type, but is still at risk of contracting others.