For Unvaccinated, COVID Reinfection Is Likely – “Can Happen in Three Months or Less” TOPICS: COVID-19ImmunologyInfectious DiseasesPublic HealthUniversity of North CarolinaVaccineYale University By Yale University October 6, 2021 Throughout the COVID-19, there has been much uncertainty about how long immunity lasts after an unvaccinated person is infected with SARS-CoV-2 Now a team of scientists led by faculty at Yale School of Public Health and the University of North Carolina at Charlotte have an answer: Strong protection following natural infection is short-lived. “Reinfection can reasonably happen in three months or less,” said Jeffrey Townsend, the Elihu Professor of Biostatistics at the Yale School of Public Health and the study’s lead author. “Therefore, those who have been naturally infected should get vaccinated. Previous infection alone can offer very little long-term protection against subsequent infections.” The study, is the first to determine the likelihood of reinfection following natural infection and without vaccination. Townsend and his team analyzed known reinfection and immunological data from the close viral relatives of SARS-CoV-2 that cause “common colds,” along with immunological data from SARS-CoV-1 and Middle East Respiratory Syndrome. Leveraging evolutionary principles, the team was able to model the risk of COVID-19 reinfection over time. Reinfections can, and have, happened even shortly after recovery, the researchers said. And they will become increasingly common as immunity wanes and new SARS-CoV-2 variants arise. “We tend to think about immunity as being immune or not immune. Our study cautions that we instead should be more focused on the risk of reinfection through time,” said Alex Dornburg, assistant professor of bioinformatics and genomics at the University of North Carolina at Charlotte, who co-led the study. “As new variants arise, previous immune responses become less effective at combating the virus. Those who were naturally infected early in the pandemic are increasingly likely to become reinfected in the near future.” The team’s data-driven model reveals striking similarities to the reinfection risks over time between SARS-CoV-2 and endemic coronaviruses. “Just like common colds, from one year to the next you may get reinfected with the same virus,” Townsend said. “The difference is that, during its emergence in this pandemic, COVID-19 has proven to be much more deadly.” A hallmark of the modern world is going to be the evolution of new threats to human health, Townsend added. Evolutionary biology — which provided the theoretical foundations for these analyses — is traditionally considered a historical discipline. “However, our findings underscore its important role in informing decision-making, and provide a crucial steppingstone toward robust knowledge of our prospects of resistance to SARS-CoV-2 reinfection,” he said. Reference: “The durability of immunity against reinfection by SARS-CoV-2: a comparative evolutionary study” by Prof Jeffrey P Townsend, PhD; Hayley B Hassler, MS; Zheng Wang, PhD; Sayaka Miura, PhD; Jaiveer Singh; Prof Sudhir Kumar, PhD; Prof Nancy H Ruddle, PhD; Prof Alison P Galvani, PhD and Alex Dornburg, PhD, 1 October 2021, The Lancet Microbe. DOI: 10.1016/S2666-5247(21)00219-6 Co-authors include researchers from Temple University. Funding for the research was provided by the U.S. National Science Foundation. https://scitechdaily.com/for-unvacc...is-likely-can-happen-in-three-months-or-less/ ---------- wrbtrader
What will be found in the fullness of time is that vaccines help with getting someone through Kung Flu infection (there is no such thing as reinfection) and that masks and lockdowns do not work. Rather, the best course of action is to let it run, like we do with the flu and colds. Strains of Kung Flu will continue to mutate and Kung Flu is now endemic. DeSantis, Noem and Abbott have it right.
"No such thing as reinfection" --- your nonsense is laughable when governments across the globe are reporting documented re-infection cases. Have you no shame in continually pushing misinformation which is causing the deaths of thousands of people across the globe?
Infection from new variants occurs. There is no such thing as reinfection from the same strain. This is virology 101. Kung Flu is endemic and is here to stay in it's different and constantly mutating forms. Time to end the madness of lockdowns, mask mandates and vaccine mandates and get society and the economy back to "normal". It's been time since early 2020.
There have been many fully documented examples of re-infection from the same strain. Including on U.S. Navy ships at the beginning of the pandemic.
He's never studied in college virology, immunology, molecular genetics, infectious diseases, and most likely nothing beyond biology that keeps his belief that reinfection is only caused by different strains...the latter he recently admitted to such when in prior he had denied such by saying its FALSE. Also, he knows the United States has now only recently been doing studies involving reinfections along with having a better way to document cases of reinfections in which the documentation of reinfections did not exist under the Trump administration. See no evil, Hear no evil, Speak no evil Here's a hypothetical situation that's now being studied for Covid but is true in other viruses. Pretend there are multiple key components of Covid as I described specifically with graphs in another thread. One of those components of Covid Virus A infects you because something in your immune system was not able to defend against that specific component of the virus that enables it to infect you (the host). You become infected and recover either from a mild infection or eventually recover from a severe infection that resulted in hospitalization. Viruses always leave something behind in your body that could become problematic to you months or years later even though today you may think you're healthy again (e.g. study the reactivation relationship between ChickenPox and Shingles that causes different illnesses from the same virus). Regardless, your body's immune system has now been trained to recognize that specific component that caused the initial infection to spread in your body. Months later your immune system is attacked again by Virus A (same strain) but given to you by a different person in comparison to someone that had infected you the first time. The immune system is now confused...it recognizes that same key component that caused the initial infection but it does not realize the danger from those other components in the same strain. The virus quickly adapts to your immune system response via throwing a different type of punch that your immune system did not train to defend against. One of those other key components now attacks your cells that allows the same strain to reinfect you. If you recover from the reinfection, your immune system is now primed to recognize another attacking component of the same strain or the same component in a new strain. The above same situation is what causes breakthrough infections of those fully vaccinated. The above is a layman's explanation of immunology, virology, and molecular genetics articles that anyone can understand...I posted recently in another thread with pretty pictures without mentioning the words reinfections or breakthrough infections. Reinfections are a rare situation but as the CDC has documented...it does occur just like breakthrough infections of those that are fully vaccinated... it is rare but it does happen. ---------- ...While rare as of yet, reinfection cases seem to have more intense symptoms on average. A recent report from the Centers for Disease Control and Prevention (CDC) details reinfection in a Kentucky elderly facility. In the summer of 2020, this nursing home reported 25 positive cases of Covid-19. Several months later, from October to December, the same facility reported over 100 cases, with five testing positive for the second time. While only three of the five experienced moderate to severe symptoms of the first infection, all five did the second time around. One reinfected resident was hospitalized and succumbed to their illness... https://www.forbes.com/sites/willia...more-reason-to-be-vaccinated/?sh=3d96a8df12e2 ---------- wrbtrader
CDC study: Vaccination offers better protection than previous COVID-19 infection https://thehill.com/policy/healthca...fers-better-protection-than-previous-covid-19 A new study from the Centers for Disease Control and Prevention (CDC) finds that vaccination provides better protection against hospitalization with COVID-19 than a previous infection with the virus. The analysis found people hospitalized with coronavirus-like symptoms were more than five times more likely to test positive for COVID-19 if they had had recent prior infection than if they were recently vaccinated. The study released Friday examined more than 7,000 people across nine states and 187 hospitals, comparing those who were unvaccinated and had previously had the coronavirus in the last three to six months and those who were vaccinated over the same time frame. Some have argued that people who previously had COVID-19 have less need to get vaccinated. The CDC urged even those who were previously infected to get their shots. “We now have additional evidence that reaffirms the importance of COVID-19 vaccines, even if you have had prior infection,” CDC Director Rochelle Walensky said in a statement. “This study adds more to the body of knowledge demonstrating the protection of vaccines against severe disease from COVID-19.” Overall, Walensky said at a press briefing earlier this week that the hospitalization rate among unvaccinated people is 12 times higher than for vaccinated people. The vaccination rate for those 12 and older has now reached 78 percent with at least one shot, but Walensky noted that still leaves more than 60 million eligible Americans unvaccinated.
I did say early this year that we'll see more data / research by end of the year that will support this as fact that Vaccination provides better protection than Natural Immunity for someone that has had a prior Covid infection. Heck, you've been stating the same a lot longer than I have. wrbtrader