Global health leaders will meet for three days to discuss what's been learnt from coved 19. Coved 19 is a stress test that revealed the flaws in systems that produce says ely ackle, an internal medicine specialist and clinical epidemiologist at the american university of beyrout. Many physicians point to the united kingdom's recovery trial as exemplary in showing how quick action and simple protocols make it possible to conduct a large clinical trial in a crisis.