People line up to get vaccinated for coronavirus disease (COVID-19) at the Central Vaccination Center as Thailand opens walk-in for first dose of the AstraZeneca vaccination scheme for elders, people with a minimum weight of 100 kilograms and pregnant women amid the coronavirus (COVID-19) outbreak in Bangkok, Thailand, July 23, 2021. Picture taken on July 23, 2021. REUTERS/Chalinee Thirasupa