HCM City shortens interval between AstraZeneca vaccine doses to six we… stockbot 0 250 2021.09.25 00:51 http://vietnamnews.vn/society/1037411/hcm-city-shortens-interval-betwe… + 5 https://vietnamnews.vn/rss/society.rss + 1 The HCM City People’s Committee on September 24 approved a proposal from the city Department of Health to shorten the interval between AstraZeneca vaccine doses to six weeks from a previous period of eight to 12 weeks.