Mayo Clinic expert answers questions about the new COVID-19 …
2023年9月13日 · Ahead of the fall respiratory virus season, the Food and Drug Administration has approved two updated COVID-19 vaccines. The new messenger RNA, or mRNA, vaccines from Moderna and Pfizer/BioNTech are formulated to better target variants that are currently circulating and will replace outdated vaccines.
COVID-19 vaccine myths debunked - Mayo Clinic News Network
2020年12月9日 · Both of these vaccines use messenger RNA, or mRNA, to teach your cells how to make a protein that will trigger an immune response to COVID-19. However, messenger RNA is fragile and can break down easily. Storing messenger RNA vaccines, like these COVID-19 vaccines, in an ultracold environment keeps them stable and safe.
Nanoparticle Vaccines Explained - Mayo Clinic News Network
2022年2月16日 · The Mayo Clinic Vaccine Research Group, in collaboration with virologists worldwide, has worked on nanoparticle delivery for vaccines since 2015 for both the influenza H5N1 and Zika viruses. More recently, the Food and Drug Administration approved messenger RNA (mRNA) COVID-19 vaccines that use lipid nanoparticles as a bubble around the genetic ...
What you need to know about COVID-19 booster shots
2021年8月20日 · The Food and Drug Administration (FDA) will need to conduct an independent evaluation to determine the safety and effectiveness of a third dose of the Moderna or Pfizer messenger RNA vaccines. The Centers for Disease Control and Prevention's Advisory Committee on Immunization Practices will need to issue booster dose recommendations.
Mayo Clinic Q and A: COVID-19 vaccination and heart issues
2021年6月25日 · These vaccines are now approved for people 12 and older. Recently, news reports have been published about young people developing myocarditis after receiving a second dose of a messenger RNA COVID-19 vaccine, like Moderna or Pfizer. Myocarditis, which is an inflammation of the heart muscle, usually occurs after a viral infection. And, although ...
Safety of COVID-19 vaccines for patients with cancer and cancer ...
2021年1月15日 · The good news for patients with cancer and cancer survivors is that the Pfizer/BioNTech and Moderna COVID-19 vaccines are not live virus vaccines. That makes them less likely to cause side effects in immunosuppressed patients. "Both vaccines are mRNA (messenger RNA) vaccines, which means they teach our bodies how to make a protein that …
What you need to know about the BA.5 omicron variant
2022年7月14日 · Dr. Gregory Poland, head of Mayo Clinic's Vaccine Research Group, says the BA.5 variant is hypercontagious and is contributing to increases in hospitalizations and ICU admissions. A new study published in Nature found the variant was four times more resistant to messenger RNA vaccines than earlier strains of omicron. The Moderna and Pfizer COVID-19 …
Mayo Clinic Q and A: Answering questions about delta variant, …
2021年8月6日 · We have that information from clinical studies and laboratory tests of what we think the immune response should be. They're showing clinically in the U.K., where the delta variant has been taking hold for many months now, that those messenger RNA vaccines are still highly effective — over 80% for infection and 90% or so for severe disease.
Covid Queries: Altered DNA and microchips - Mayo Clinic News …
2021年10月11日 · As for the altered DNA theory, the first COVID-19 vaccines to reach the market were messenger RNA (mRNA) vaccines. According to the CDC, mRNA vaccines work by instructing cells in the body how to make a protein that triggers an immune response. Injecting mRNA into your body will not interact or do anything to the DNA of your cells.
COVID-19 Vaccines Use Different Attack Modes
2021年2月1日 · While the SARS-CoV-2 virus that causes COVID-19 continues to evolve, there are vaccines developed so far that prevent severe COVID-19. However, they approach their goal ― a swift and appropriate immune response ― via different routes. Some are genetic vaccines, using messenger RNA, or mRNA. Others use viral proteins, and some use a virus to […]