
How does Johnson & Johnson's COVID-19 vaccine compare to Moderna, Pfizer?
Fox News
With Johnson & Johnson’s COVID-19 vaccine facing an FDA-recommended pause after several instances of severe blood clots were reported in recipients, those who had scheduled J&J shots could see a bumpy rescheduling process involving canceled or delayed appointments, or even find themselves lined up to receive alternatives if supply allows.
Vaccines developed by Moderna and Pfizer-BioNTech operate on a newer platform with mRNA, or messenger RNA, technology, while Johnson & Johnson’s candidate involves a more traditional modified adenovirus vector vaccine with a durable protein exterior encasing the DNA, lending itself to a longer shelf-life. Clinical trials indicated vaccines developed by Pfizer and Moderna were about 95% effective against symptomatic illness, and Johnson & Johnson’s candidate had a 66.3% efficacy. Trial data also revealed all three vaccines were highly effective in preventing hospitalizations and deaths.More Related News













