Health
Vaccines also benefit people who have been infected with COVID-19 in the past
Claim: If you have innate immunity from a COVID-19 attack, you do not need a vaccine
Despite the increasing number of coronavirus cases and deaths in parts of the United States, many Americans are still undecided about getting vaccinated. Survey from Kaiser Family Foundation Vaccine Monitor We found that 46% of unvaccinated respondents said they would never or not be vaccinated by the end of the year.
Part of that hesitation was the belief that COVID-19 shots pose a greater health risk than the virus itself. This is what 53% of unvaccinated respondents are afraid of. Another part may be related to the idea that vaccines are completely unnecessary, especially if you have already been ill before.
Read, “If you are considering vaccination with covid, check your SARS cov 2 IgG levels first.” August 7 Facebook post.. “If you have your own” innate immunity “, you don’t need a vaccine !!”
Posts claim these antibody – A Y-shaped protein that the immune system creates and uses to target foreign pathogens – Make sure your body has developed its own immunity to the virus.
It is true that immunity to aggressive invaders such as bacteria and viruses can be naturally acquired, but experts say that innate immunity is less protective against new variants than vaccines. New data from the US Centers for Disease Control and Prevention show that if you have been infected before, you are more likely to get infected again.
USA TODAY is asking for comments on Facebook posters.
Natural antibodies are less protective against new mutants
The main reason immunity from natural infections is not completely certain is now the highly contagious delta mutant. Over 90% of US cases..
“Antibodies induced by infection do not neutralize currently circulating coronavirus mutants as efficiently as antibodies induced by mRNA vaccination.” Scott Hensley, Associate Professor of Microbiology, University of Pennsylvania, Earlier told USA Today..
NS June 30th study published in Science Translational Medicine Antibodies produced by those fully vaccinated with Moderna’s mRNA vaccine have been found to be more broadly defensive against a variety of variants compared to antibodies from recovered COVID-19 patients. rice field.
More consistent vaccine protection
Vaccines also said they provide much more consistent protection from infection than innate immunity. Grant McFadden, Director of the Biodesign Center for Immunotherapy, Vaccines and Virotherapy at Arizona State University.
“Recovery from COVID results in highly variable immunity to secondary infections, which is reflected in a wide range of anti-spiking antibodies in recovered patients,” McFadden told USA Today. “On the other hand, immunity from vaccines (especially the messenger RNA version) is much more uniform in terms of both protection from COVID and anti-spiking antibody levels.”
Oxford University Study Issued in June We have found that people with a weak immune response from previous COVID-19 infections may be at increased risk of being infected with new viral variants.
The vaccine also induces the body to produce antibodies at even higher levels than those recovered from COVID-19. Dr. Taylor Healed Sargent, Associate Professor of Pediatrics, Specializing in Infectious Diseases, Northwestern University School of Medicine, Feinberg School of Medicine, Talked to health..
“Vaccines induce far more antibodies than natural infections, so when vaccines are reduced, protection lasts longer than protection from natural infections,” she said.
More common reinfection without vaccination
Antibodies are made by the arms of the immune system, called the adaptive immune response. It retains the memory of pathogens that the body has encountered so far and launches a more specialized attack if they re-enter.
Studies show that COVID-19 infection can lead to a reservoir of protective antibodies Continues up to 8 NS 11 months.. However, as recent CDC studies and others have discovered, these antibodies do not always prevent reinfection.
CDC study released on August 6th Among residents of Kentucky who were infected with COVID-19 in 2020 and were observed during the May-June 2021 study period, unvaccinated were 2.34 times more re-infected than fully vaccinated. It turns out that there is a high possibility of doing so.
research Published in Lancet Respiratory Medicine The journal also found a high recurrence rate when examining the COVID-19 reinfection of the young and healthy US Marine Corps. Of the 189 Marines infected with the virus between May and November 2020, a April survey found that 10% were again positive.
in the meantime Health expert told USA Today A second attack with COVID-19 can cause asymptomatic or mild reinfection, but this is not always the case.
A 25-year-old man in Nevada was the first reported case of COVID-19 reinfection in October 2020. According to a case study published in The Lancet Infectious Diseases.. The researchers said his second workaround was “symptomatically more severe than the first workaround.”
A 46-year-old man in Ecuador was considered the first confirmed COVID-19 reinfection in South America. According to another case study published in September 2020.. Men who developed antibodies after a mild infection became much more seriously ill when re-infected a few weeks later.
Our rating: False
Based on our research, we misassess the claim that vaccines are not needed if we have innate immunity from a COVID-19 attack. People who have recovered from COVID-19 are still at risk of being re-infected with the virus, according to new data from the CDC. This is because immunity from infection does not provide the same benefits as immunity from vaccination. The COVID-19 vaccine provides uniform levels of immunity (higher than many infected with the virus) to vaccinated individuals, is effective against new variants, and is more effective than the immunity obtained from natural infections. Also encourages the body to make more antibodies.
Our Fact Check Source:
- Kaiser Family Foundation, August 4th KFF COVID-19 Vaccine Monitor: July 2021
- Live Science, July 17, 2020, What is an antibody?
- Science, February 5th Immunological memory of SARS-CoV-2 evaluated for up to 8 months after infection
- Nature, May 24, SARS-CoV-2 infection induces long-lived bone marrow plasma cells in humans
- Centers for Disease Control and Prevention, August 6 Reducing the risk of reinfection with SARS-CoV-2 after COVID-19 vaccination – Kentucky, May-June 2021
- Lancet Respiratory Medicine, April 15 SARS-CoV-2 seropositive and subsequent infection risk in healthy young adults: prospective cohort study
- USA TODAY, August 9th According to experts, natural infections are not enough to protect against COVID-19. You still need the vaccine.
- Lancet infection, October 12, 2020, Genome Evidence of Reinfection with SARS-CoV-2: Case Study
- Social Science Research Network, September 8, 2020, COVID-19 reinfection with phylogenetically different SARS-CoV-2 mutants, the first confirmed event in South America
- Yale Medicine, August 9th 5 things you need to know about delta variants
- USA TODAY, June 21st Fact Check: The COVID-19 vaccine provides safer and more consistent immunity than infection
- Scientific translation medicine, On June 30, antibodies induced by mRNA-1273 vaccination bind more broadly to the receptor binding domain than antibodies induced from SARS-CoV-2 infection.
- Oxford University, June 18th The latest data on the immune response to COVID-19 enhances the need for vaccination, Oxford-led studies say.
- Health, august 10 Does innate immunity protect against delta variants or do you need a vaccine?
Contributions: Adrianna Rodriguez and Daniel Funke, USA TODAY
Thank you for supporting our journalism.you can Subscribe to our print version, ad-free app or replica of your electronic newspaper here..
Our fact checking work is partially supported by a grant from Facebook.
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