Encyclopedia Britannica
Encyclopedia Britannica
SUBSCRIBE
SUBSCRIBE
SUBSCRIBE TO PREMIUM
  • Home
  • Biographies
  • Animals & Nature
  • History & Society
  • Science & Tech
  • Geography & Travel
  • Arts & Culture
  • ProCon
  • Money
  • Games & Quizzes
  • Videos
  • Today in History
  • Dictionary
  • New Articles
Biographies
  • Browse Biographies
Animals & Nature
  • Birds, Reptiles & Other Vertebrates
  • Environment
  • Fossils & Geologic Time
  • Insects & Other Invertebrates
  • Mammals
  • Plants
History & Society
  • History
  • Philosophy & Religion
  • Politics, Law & Government
  • Society & Social Issues
Science & Tech
  • Health & Medicine
  • Science
  • Technology
Geography & Travel
  • Geography & Travel
Arts & Culture
  • Entertainment & Pop Culture
  • Literature
  • Sports & Recreation
  • Visual Arts
  • Image Galleries
  • Podcasts
  • Summaries
  • Top Questions
  • Lists and Stories
  • Britannica Kids
Ask the Chatbot Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture ProCon Money Videos
Janssen COVID-19 vaccine
References
Britannica AI Icon

Janssen COVID-19 vaccine

medicine
Written by
The Information Architects of Encyclopaedia Britannica

The Information Architects maintain a master list of the topics included in the corpus of  Encyclopædia Britannica, and create and manage the relationships between them.

The Information Architects of Encyclopaedia Britannica

Learn about this topic in these articles:

  • COVID-19 vaccine
    COVID-19 vaccine

    …recombinant version, known as the Janssen COVID-19 vaccine, developed by Johnson & Johnson. The Moderna and Pfizer-BioNTech vaccines were about 95 percent effective in preventing infection with SARS-CoV-2; the Janssen vaccine was about 67 percent effective in preventing moderate to severe disease. Other vaccines included the Oxford-AstraZeneca COVID-19 vaccine, a

    Read More

    …recombinant version, known as the Janssen COVID-19 vaccine, developed by Johnson & Johnson. The Moderna and Pfizer-BioNTech vaccines were about 95 percent effective in preventing infection with SARS-CoV-2; the Janssen vaccine was about 67 percent effective in preventing moderate to severe disease. Other vaccines included the Oxford-AstraZeneca COVID-19 vaccine, a

    Read More