The plans will see all 45 players called up to the national squad inoculated against the virus at Military Hospital 108 in Hanoi over two days on April 19 and April 20.
These changes have been made to better suit the schedule of those participating in the games in the V.League 1 and V.League 2. Matches will be temporarily paused after April 18, as the players have few days off before returning to compete in the National Football Cup 2021 from April 23.
National team players had originally been scheduled to be vaccinated on April 8, 9, 13, and 17, but now the schedule has been changed for inoculations to take place after April 18.
Meanwhile, chief coach Park Hang-seo and his assistants got the first vaccine shot on April 5.
Thirty-four players are due to gather in mid-May for a training camp before they fly to the United Arab Emirates (UAE) on May 31 in the lead-up to the World Cup 2022 qualifiers, Asian region.
Vietnam are scheduled to take on Indonesia on June 7, Malaysia on June 11, and hosts the UAE on June 15.