coronavirus shouldn’t be mixed-and-matched, despite Britain’s recent decision to allow the practice to be used in rare occasions, health experts say.Mixing different coronavirus vaccines without any data to suggest the safety and efficacy of the practice is “a huge gamble,” Dr.
Colin Furness, an infection control epidemiologist and assistant professor at the University of Toronto said.“I think it’s irresponsible … it’s unethical because we don’t know what that does,” he said. “We don’t know what the effectiveness is, we don’t know what the side effects are.” Britain to allow coronavirus vaccine mixing on rare occasions Dr.