Just two weeks before her long-awaited vaccine appointment in Bangkok, Anyamanee Puttaraksa's 62-year-old mother became feverish. Three days later, her mother tested positive for COVID-19. Four hours afterward, she died.

Alongside Anyamanee's grief is anger at a vaccine rollout that has left older people among Thailand's least-vaccinated groups — a contrast to much of the rest of the world, where vulnerable older people have been a priority.

"If she had been vaccinated, her symptoms wouldn't have been so severe," Anyamanee said.