US Researchers Working to Upgrade COVID-19 Vaccines for Variants

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  • US scientists are planning to tweak COVID-19 vaccines to help tackle the coronavirus variants circulating in the UK and South Africa
  • Further, Moderna said though its COVID-19 vaccine was effective against the variants, it was developing a new form that would be used as a booster shot
  • Fauci, the top US infectious disease expert, said in a TV interview that the new variants were not only more contagious but also evaded antibodies that have been used to treat COVID-19 patients
  • He said he was more worried about the South African variant, which he claimed to be more dangerous and different from the UK variant
  • Fauci also said there is also a chance that the available COVID-19 vaccines may be less effective against the variants