Thai PBS Thai PBS
Pfizer first dose 85% effective after 2-4 weeks: study

Pfizer first dose 85% effective after 2-4 weeks: study

14 Sept 23:04 Key points summarised by AI
  • A study published in The Lancet medical journal found that the first dose of the Pfizer vaccination is 85% effective against coronavirus infection between two and four weeks post-inoculation.
  • The research was conducted on over 9,000 healthcare workers at Sheba Hospital in Israel, a country leading one of the world's fastest mass vaccination campaigns.
  • The study observed that vaccine effectiveness rose from 47% between one and 14 days after inoculation to 85% after 15 to 28 days.
  • Despite the vaccine's high effectiveness, scientists are still actively investigating whether fully vaccinated individuals can transmit the virus to others.
Read full article
World 1/4
Skip > Skip >