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"Dr. Anthony Fauci said a study showed that after one dose of the Pfizer-BioNTech vaccine, people with prior coronavirus infections had better immune responses against B.1.1.7 and B.1.351 variants."
https://www.cnbc.com/2021/05/05/fau...ay-have-more-protection-against-variants.html
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"Fauci cited a study published in late April that found that after one dose of the
Pfizer-
BioNTech vaccine, people with prior coronavirus infections had better immune responses against B.1.1.7 and B.1.351, the variants first identified in the U.K. and South Africa, compared with those who hadn’t had Covid."
He cited an additional study, which was published online and not yet peer-reviewed, that found people with prior infections who were later boosted with two doses of an mRNA vaccine had “increased protection” protection against variants.
The studies provide more evidence on the benefits of getting vaccinated, Fauci said.
“Vaccines are highly efficacious,” Fauci said during a White House Covid briefing. “They are better than the response you get from natural infection.”