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Efficacy of vaccines may reduce after mass inoculation – Dr. Yong

Efficacy of vaccines may reduce after mass inoculation – Dr. Yong

23 Sept 04:58 Key points summarised by AI
  • Thai virologist Dr. Yong Poovorawan states that vaccine efficacy typically decreases during mass inoculation compared to clinical trial results.
  • He cites the Hepatitis B vaccine as an example, where its efficacy dropped from 94-95% in trials to approximately 80% in real-world application.
  • Pfizer's claimed 95% efficacy for its COVID-19 vaccine is expected to similarly decline due to various real-world factors.
  • Actual mass efficacy data for Pfizer (from Israel's inoculation campaign) and Sinopharm (from UAE's campaign) is anticipated soon.
  • Dr. Yong advises against relying solely on vaccines, urging continued adherence to basic safety standards like mask-wearing, handwashing, and social distancing.
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