There is “absolutely no evidence” that covid-19 vaccines can affect the fertility of women or men, says new expert guidance. The guidance,1 published by the Association of Reproductive and Clinical Scientists and the British Fertility Society, comes amid concerns that misinformation that has been circulating online about covid-19 vaccines and fertility may be putting some women off having the vaccine.

Kamlesh Khunti, professor of primary care diabetes and vascular medicine at the University of Leicester, told The BMJ that he was concerned that misinformation may have contributed to the lower uptake among doctors in a study he led of vaccination rates in hospital staff at Leicester hospital, which published preliminary findings2 this week.