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Dr. Nicolas Cermakian featured in STAT
Got questions about the timing of flu and Covid vaccines? Here’s what experts say
“It seems there’s a whole program in the T cells that makes them very efficient at responding in the day and being less efficient at night,” said Nicolas Cermakian, a chronobiologist at McGill University and the Douglas Research Centre in Montreal. In a 2019 PNAS study, his team showed that vaccines delivered during the day produced more T cell activation than those delivered at night.