Kemi Badenoch rejects evidence given to MPs and believes the suggestion amounts to saying “the NHS is racist”.
The study also found that those who backed Remain were around 7% more willing to have a jab.
The London mayor had his first dose of the Covid vaccine on Friday morning.
It comes after a government scientist said ending lockdown too fast could see outbreaks in communities with low uptake.
Former minister claims it would be "thought crime" if the Conservative whip was withdrawn.
Specialist agency MMC has been contacting communities to tackle misinformation and coronavirus vaccine hesitancy.
Sage committee suggestions to tackle "vaccine hesitancy" and help relieve the "boredom" of self-isolation.
Tom Tugendhat tells HuffPost UK that if there is a coronavirus vaccine then rejecting it "is going to have consequences".
Scuffles broke out between demonstrators and police at an anti-vaccination and anti-lockdown protest at London’s Trafalgar Square.
Fake news stories claiming that a participant in a study at Oxford had died first emerged on Saturday and have since gained traction online – particularly among anti-vaxxers.