The vaccine works by using spike proteins from SARS-CoV-2 — the virus that causes COVID-19 — and seven other related animal viruses with the potential to cause a pandemic in humans. FOX13
Melissa Marx, an assistant professor and epidemiologist at the Johns Hopkins Bloomberg School of Public Health, stressed the importance of vaccines for all ages, including kids.COVID-19 variantsAccording to a news release from Caltech, the vaccine works by using spike proteins from SARS-CoV-2 — the virus that causes COVID-19 — and seven other related animal viruses with the potential to cause a pandemic in humans.
Researchers did not include SARS-Cov — the virus that caused the SARS pandemic in the early 2000s — in the eight viruses attached to the nanoparticle, but animals that got the vaccine were still protected against SARS-Cov, researchers said. Unvaccinated mice that were infected with a SARS-like virus died."We can't predict which virus or viruses among the vast numbers in animals will evolve in the future to infect humans to cause another epidemic or pandemic," Bjorkman said.
Current COVID-19 vaccines have saved millions of lives globally, and those used in the U.S. still offer strong protection against hospitalization and death — especially after a booster dose. But their ability to block infection dropped markedly when the super-contagious omicron mutant emerged. recommended in late June that Pfizer and Moderna tweak their booster shots to better match new omicron variants, which account for half of all COVID-19 cases in the U.S.Only about half of vaccinated Americans have gotten a single booster. And while a second booster that’s recommended for people 50 and older again restores protection, only a quarter of those eligible have gotten one.
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