2 New COVID-19 Vaccines Nearing Approval: How They’re Different

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Adjuvant vaccines have been around since the 1950s, which also could reassure “those who are concerned about safety issues, even though the mRNA vaccines are extremely safe,” Dr. Bob Bollinger, a professor of infectious diseases at Johns Hopkins University School of Medicine in Maryland and a founding member of emocha Health.

“If it persuades people who are hesitant to get vaccinated, that’s a good thing,” he told Healthline.