Johnson & Johnson Covid-19 vaccine is 66% effective in global trial, but 85% effective against severe disease, company says.
Dr. Paul Offit, a vaccine expert at the University of Pennsylvania and a member of the FDA’s Vaccines and Related Biological Products Advisory Committee, said that under normal circumstances, there might not be much of a market for a vaccine that is significantly less effective than two others already on the market. But he added that these are not normal times, with a pandemic raging and shortage of vaccines.
How effective is the flu vaccine?
CDC conducts studies each year to determine how well the influenza (flu) vaccine protects against flu illness. While vaccine effectiveness (VE) can vary, recent studies show that flu vaccination reduces the risk of flu illness by between 40% and 60% among the overall population during seasons when most circulating flu viruses are well-matched to the flu vaccine.
So why is there a discomfort in taking this vaccine? The single-shot vaccine was 66% effective overall at preventing moderate to severe illness and that report makes some people leery of accepting it over the Pfizer or Moderna. That it will keep you out of the hospital or dying may be enough to over come concerns.
How effective is the seasonal flu vaccine?
CDC conducts studies each year to determine how well the influenza (flu) vaccine protects against flu illness. While vaccine effectiveness (VE) can vary, recent studies show that flu vaccination reduces the risk of flu illness by between 40% and 60% among the overall population during seasons when most circulating flu viruses are well-matched to the flu vaccine.
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