You're reading: Wall Street Journal: Coronavirus vaccine candidate from Pfizer, BioNTech produces positive results in early study

Researchers said an experimental coronavirus vaccine from Pfizer Inc. and partner BioNTech SE showed promising signs of working in an early-stage study. Healthy adult volunteers given the vaccine candidate had higher levels of antibodies four weeks after being vaccinated and seven days after getting a second dose, compared with the antibody levels in recovered Covid-19 patients who didn’t get the shots, the researchers reported Wednesday.

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