Moderna may be superior to Pfizer against Delta; breakthrough odds rise with time
Key Excerpts from Article on Website of Reuters
Posted: August 16th, 2021
Moderna's vaccine may be best against Delta. The mRNA vaccine from Pfizer and BioNTech may be less effective than Moderna's against the Delta variant of the coronavirus, according to two reports posted on medRxiv on Sunday ahead of peer review. In a study of more than 50,000 patients in the Mayo Clinic Health System, researchers found the effectiveness of Moderna's vaccine against infection had dropped to 76% in July - when the Delta variant was predominant - from 86% in early 2021. Over the same period, the effectiveness of the Pfizer/BioNTech vaccine had fallen to 42% from 76%. While both vaccines remain effective at preventing COVID hospitalization, a Moderna booster shot may be necessary soon for anyone who got the Pfizer or Moderna vaccines earlier this year, said Dr. Venky Soundararajan ... who led the Mayo study. In a separate study, elderly nursing home residents in Ontario produced stronger immune responses - especially to worrisome variants - after the Moderna vaccine than after the Pfizer/BioNTech vaccine. The elderly may need higher vaccine doses, boosters, and other preventative measures, said Anne-Claude Gingras ... who led the Canadian study. When asked to comment on both research reports, a Pfizer spokesperson said, "We continue to believe... a third dose booster may be needed within 6 to 12 months after full vaccination to maintain the highest levels of protection."
Note: The Pfizer injection effectiveness has dropped to 42%, yet virtually no media are reporting on this. Is it surprising that those who got the jab will likely need another dose to protect them against the Delta variant? And of course there will be other variants. Big Pharma is jumping with joy at the prospect of all of these extra profits. For more along these lines, see concise summaries of deeply revealing news articles on coronavirus vaccines from reliable major media sources.