Johnson & Johnson vaccine less effective against Delta variant: study
https://healthell.blogspot.com/2021/07/johnson-johnson-vaccine-less-effective.html
Johnson & Johnson vaccine less effective against Delta variant: study
A recent study from researchers at NYU’s Grossman School of Medicines found that the Johnson & Johnson vaccine may be less effective in battling COVID-19 variants than vaccines made by Pfizer-BioNTech or Moderna.
