Your menstrual cycle may affect how well vaccines work
Women who were vaccinated against covid-19 in the luteal phase of their menstrual cycle reported having a breakthrough infection sooner than those vaccinated during their follicular phase
NE
New Scientist
29 Jun 2026 14 hours ago 1 min read
New Scientist โ 29 June 2026
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Your menstrual cycle may affect how well vaccines work
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Women who were vaccinated against covid-19 in the luteal phase of their menstrual cycle reported having a breakthrough infection sooner than those vac