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In reply to the discussion: Don't bet on vaccine to protect us from Covid-19, says world health expert [View all]Kathy M
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" WASHINGTON (AP) Scientists are dusting off some decades-old vaccines against other germs to see if they could provide a little stopgap protection against COVID-19 until a more precise shot arrives.
It may sound odd: Vaccines are designed to target a specific disease. But vaccines made using live strains of bacteria or viruses seem to boost the immune systems first line of defense, a more general way to guard against germs. And history books show that sometimes translates into at least some cross-protection against other, completely different bugs.
"Possibly next in line: Oral polio vaccine, drops made of live but weakened polio viruses. The Baltimore-based Global Virus Network hopes to begin similar studies with that vaccine and is in talks with health authorities, network co-founder Dr. Robert Gallo told The Associated Press.
Rapid studies are needed to tell if there could be long-ranging effects for any second wave of this, said Gallo, who directs the Institute of Human Virology at the University of Maryland School of Medicine."
https://apnews.com/ae72d066a2caa17de91be9a60e4934b9