The world is moving on from the pandemic. Not these covid long-haulers.

Clockwise from center, Billie Tracey, Sherene Magana Cruz, André Saravia, Matthieu Lestage and Phil Hedayatnia. (Carolyn Van Houten/The Washington Post)

In many countries around the world, the hope is that the worst of the coronavirus pandemic is over. People have stripped off their masks. Quarantine rules are vanishing.

But three years in, there is still no standard test or treatment for post-covid conditions. Millions suffer from unexplained symptoms that many fear will far outlast the pandemic: unrelenting fatigue, memory loss, chest pain, diarrhea and boomeranging heart rates.