People claim the mRNA shots are safer for women than J and J. In England and EU , AstraZeneca is no longer administered to anyone under 60. Especially women. But not because of fertility...because of clotting risk.
But Russia’s adenovirus vaccines are different in mechanism due to suing two not one vector or something...and also supposed to be safer due to some delicate filtration process their vaccine makers employed... they said they’re willing to share their knowledge but there’s so little healthy dialogue among all the vaccine makers.
It’s difficult to evaluate the efficacy of the Sputnik V vaccine because the Russian authorities haven’t released primary data from the clinical trials.
https://www.dw.com/en/is-sputnik-v-vaccine-safe/a-57219314