Judging from the following comments, it’s safe to put Iran’s Ayatollah Khamenei into the “Covid-19 vaccine skeptic” category:
Importing vaccines made in the US or the UK is prohibited. They're completely untrustworthy. It's not unlikely they would want to contaminate other nations. Given our experience with France's HIV-tainted blood supplies, French vaccines aren't trustworthy either. #CoronaVaccine
— Khamenei.ir (@khamenei_ir) January 8, 2021