{"id":2579,"date":"2023-09-27T06:17:59","date_gmt":"2023-09-27T06:17:59","guid":{"rendered":"https:\/\/healthliteracyasia.com\/id\/2023\/09\/27\/will-covid-19-vaccines-give-lifelong-immunity-to-the-disease-what-we-know\/"},"modified":"2025-10-27T09:12:21","modified_gmt":"2025-10-27T09:12:21","slug":"will-covid-19-vaccines-give-lifelong-immunity-to-the-disease-what-we-know","status":"publish","type":"post","link":"https:\/\/healthliteracyasia.com\/id\/2023\/09\/27\/will-covid-19-vaccines-give-lifelong-immunity-to-the-disease-what-we-know\/","title":{"rendered":"Will COVID-19 vaccines give lifelong immunity to the disease? What we know"},"content":{"rendered":"\n

Whether we would develop immunity to COVID-19, or how long that would last if we did, has been a mystery since the early months of the pandemic.<\/p>\n\n\n\n

However, two new studies are helping us better understand how our immune systems adapt to infection, and what that might mean for vaccination.<\/p>\n\n\n\n

The studies, published in May, find that infection-induced immunity might last months or longer. But experts believe vaccination may lengthen the duration of this immunity.<\/p>\n\n\n\n

Another important finding from both studies is that many people who have recovered from COVID-19 and later receive an mRNA vaccine (like the Moderna or Pfizer-BioNTech vaccine) may not need booster shots.<\/p>\n\n\n\n

Immunity in people with prior infection should be effective against virus variants<\/strong><\/h3>\n\n\n\n

Both studies examined people exposed to the coronavirus roughly a year earlier.<\/p>\n\n\n\n

According to one study published in\u00a0Nature<\/em>, immune cells located in our bone marrow keep a \u201cmemory\u201d of the coronavirus and can create protective antibodies to prevent reinfection. The other study, which is not yet peer-reviewed, found these immune cells can mature and strengthen for about a year after infection.<\/p>\n\n\n\n

\u201cThe data suggest that immunity in convalescent individuals will be very long-lasting and that convalescent individuals who receive available mRNA vaccines will produce antibodies and memory B cells that should be protective against circulating SARS-CoV-2 variants,\u201d the study authors wrote.<\/p>\n\n\n\n

How the immune response works<\/strong><\/h3>\n\n\n\n

According to Dr. Miriam Smith, chief of infectious disease at Long Island Jewish Forest Hills, Northwell Health in New York, our immune systems include B cells, which are a type of white blood cell (WBC) responsible for humoral immunity.<\/p>\n\n\n\n

\u201cThey originate and mature in the bone marrow, then migrate to the spleen and lymph nodes,\u201d she told Healthline. \u201cB cells become activated in response to an antigen, a virus, or a bacterium.\u201d
Smith explained that B cells have receptors on their surface that can bind to these pathogens.<\/p>\n\n\n\n

\u201cWith help from the T cells, another component of the immune system, the B cells will differentiate into plasma cells to produce antibodies that will trap the virus or bacterium invader and allow other cells (macrophages) to destroy the invader,\u201d Smith said.<\/p>\n\n\n\n

She said that after infection, the \u201cmemory\u201d B cells stay around, so if that same virus or bacterium invades again, the immune system \u201cremembers\u201d and reactivates to fight it off.<\/p>\n\n\n\n

Had COVID-19? You should still get vaccinated<\/strong><\/h3>\n\n\n\n

\u201cIt\u2019s still important for those people to be vaccinated,\u201d said Dr. Len Horovitz, pulmonary specialist at Lenox Hill Hospital in New York. \u201cTheir immunity, as far as we know, may not be long-lived more than the 11 months that were documented.\u201d<\/p>\n\n\n\n

He explained that this means people who\u2019ve had the disease cannot rely on previous infection to achieve immunity the way people could with measles, mumps, and rubella, \u201cand those aren\u2019t necessarily permanent immunity, but let\u2019s say lifelong,\u201d he added.<\/p>\n\n\n\n

According to Horovitz, reinfections don\u2019t necessarily mean a milder case of the disease.<\/p>\n\n\n\n

\u201cIt can be milder, it can be the same in degree of severity, and it can be worse,\u201d he explained. \u201cSo, there\u2019s a lot we don\u2019t know.\u201d<\/p>\n\n\n\n

According to the Centers for Disease Control and Prevention (CDC)Trusted Source, reinfection means someone got sick once, recovered, and then got sick again. The CDC emphasizes that although uncommon, reinfection can happen with COVID-19.<\/p>\n\n\n\n

\u201cWe do not know the exact rate [of reinfection],\u201d Horovitz said. \u201cWe know it can occur, we know that it\u2019s not common, but it\u2019s not rare.\u201d<\/p>\n\n\n\n

If reinfection is possible, Horvitz pointed out, \u201cthen you can spread it to other people.\u201d<\/p>\n\n\n\n

He said this means people who contract another infection will not contribute to herd immunity.<\/p>\n\n\n\n

\u201cSo, it is important if you\u2019ve had COVID not to rely on the fact that you\u2019ve had it and probably won\u2019t get it again,\u201d Horvitz said. \u201cAnd you need to be immunized because the antibodies that you get from infection are different from the antibodies that you get from immunization. They\u2019re two different measurable antibodies.\u201d<\/p>\n\n\n\n

More booster shots in the future?<\/strong><\/h3>\n\n\n\n

These new studies also suggest that a majority of people who have recovered from COVID-19 and were later immunized with one of the mRNA vaccines will not need booster shots to maintain protection against the virus.<\/p>\n\n\n\n

However, vaccinated people who didn\u2019t have a previous infection will likely require booster shots, as will the small number of people who had the disease but didn\u2019t produce a sufficiently strong immune response.<\/p>\n\n\n\n

According to Horovitz, booster shots may likely help.<\/p>\n\n\n\n

\u201cIn fact, there was an article this week in The New York Times<\/em> where they looked at the response of people who\u2019ve had COVID and are vaccinated, and they had an unbelievable immune response \u2014 much more than somebody who was COVID na\u00efve [hadn\u2019t had a previous infection],\u201d he said.<\/p>\n\n\n\n

\u201cSo, someone who\u2019s had COVID-19, gets immunized, then they never have to have a booster,\u201d he continued. \u201cThey have more immunity than someone who\u2019s been vaccinated [and never had a previous infection], it would seem.\u201d<\/p>\n\n\n\n

The bottom line<\/strong><\/h3>\n\n\n\n

Two recently published studies have found that people who recover from COVID-19 develop antibodies that may last almost a year.<\/p>\n\n\n\n

Experts say that reinfection, while uncommon, can still happen \u2014 and being vaccinated with one of the mRNA vaccines (like the Moderna or Pfizer-BioNTech vaccine) can significantly boost immunity.<\/p>\n\n\n\n

Experts also say that people who have had COVID-19 may not require booster shots to maintain protection, since the mRNA vaccines elicit such a powerful immune response in this group.<\/p>\n\n\n\n

However, experts caution that people who haven\u2019t had a previous infection will likely need them.<\/p>\n\n\n\n

Source: Healthline<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Whether we would develop immunity to COVID-19, or how long that would last if we did, has been a mystery since the early months of the pandemic. However, two new studies are helping us better understand how our immune systems adapt to infection, and what that might mean for vaccination. The studies, published in May, find that infection-induced immunity might last months or longer. But experts believe vaccination may lengthen the duration of this immunity. Another important finding from both studies is that many people who have recovered from COVID-19 and later receive an mRNA vaccine (like the Moderna or Pfizer-BioNTech vaccine) may not need booster shots. Immunity in people with prior infection should be effective against virus variants Both studies examined people exposed to the coronavirus roughly a year earlier. According to one study published in\u00a0Nature, immune cells located in our bone marrow keep a \u201cmemory\u201d of the coronavirus and can create protective antibodies to prevent reinfection. The other study, which is not yet peer-reviewed, found these immune cells can mature and strengthen for about a year after infection. \u201cThe data suggest that immunity in convalescent individuals will be very long-lasting and that convalescent individuals who receive available mRNA vaccines will produce antibodies and memory B cells that should be protective against circulating SARS-CoV-2 variants,\u201d the study authors wrote. How the immune response works According to Dr. Miriam Smith, chief of infectious disease at Long Island Jewish Forest Hills, Northwell Health in New York, our immune systems include B cells, which are a type of white blood cell (WBC) responsible for humoral immunity. \u201cThey originate and mature in the bone marrow, then migrate to the spleen and lymph nodes,\u201d she told Healthline. \u201cB cells become activated in response to an antigen, a virus, or a bacterium.\u201dSmith explained that B cells have receptors on their surface that can bind to these pathogens. \u201cWith help from the T cells, another component of the immune system, the B cells will differentiate into plasma cells to produce antibodies that will trap the virus or bacterium invader and allow other cells (macrophages) to destroy the invader,\u201d Smith said. She said that after infection, the \u201cmemory\u201d B cells stay around, so if that same virus or bacterium invades again, the immune system \u201cremembers\u201d and reactivates to fight it off. Had COVID-19? You should still get vaccinated \u201cIt\u2019s still important for those people to be vaccinated,\u201d said Dr. Len Horovitz, pulmonary specialist at Lenox Hill Hospital in New York. \u201cTheir immunity, as far as we know, may not be long-lived more than the 11 months that were documented.\u201d He explained that this means people who\u2019ve had the disease cannot rely on previous infection to achieve immunity the way people could with measles, mumps, and rubella, \u201cand those aren\u2019t necessarily permanent immunity, but let\u2019s say lifelong,\u201d he added. According to Horovitz, reinfections don\u2019t necessarily mean a milder case of the disease. \u201cIt can be milder, it can be the same in degree of severity, and it can be worse,\u201d he explained. \u201cSo, there\u2019s a lot we don\u2019t know.\u201d According to the Centers for Disease Control and Prevention (CDC)Trusted Source, reinfection means someone got sick once, recovered, and then got sick again. The CDC emphasizes that although uncommon, reinfection can happen with COVID-19. \u201cWe do not know the exact rate [of reinfection],\u201d Horovitz said. \u201cWe know it can occur, we know that it\u2019s not common, but it\u2019s not rare.\u201d If reinfection is possible, Horvitz pointed out, \u201cthen you can spread it to other people.\u201d He said this means people who contract another infection will not contribute to herd immunity. \u201cSo, it is important if you\u2019ve had COVID not to rely on the fact that you\u2019ve had it and probably won\u2019t get it again,\u201d Horvitz said. \u201cAnd you need to be immunized because the antibodies that you get from infection are different from the antibodies that you get from immunization. They\u2019re two different measurable antibodies.\u201d More booster shots in the future? These new studies also suggest that a majority of people who have recovered from COVID-19 and were later immunized with one of the mRNA vaccines will not need booster shots to maintain protection against the virus. However, vaccinated people who didn\u2019t have a previous infection will likely require booster shots, as will the small number of people who had the disease but didn\u2019t produce a sufficiently strong immune response. According to Horovitz, booster shots may likely help. \u201cIn fact, there was an article this week in The New York Times where they looked at the response of people who\u2019ve had COVID and are vaccinated, and they had an unbelievable immune response \u2014 much more than somebody who was COVID na\u00efve [hadn\u2019t had a previous infection],\u201d he said. \u201cSo, someone who\u2019s had COVID-19, gets immunized, then they never have to have a booster,\u201d he continued. \u201cThey have more immunity than someone who\u2019s been vaccinated [and never had a previous infection], it would seem.\u201d The bottom line Two recently published studies have found that people who recover from COVID-19 develop antibodies that may last almost a year. Experts say that reinfection, while uncommon, can still happen \u2014 and being vaccinated with one of the mRNA vaccines (like the Moderna or Pfizer-BioNTech vaccine) can significantly boost immunity. Experts also say that people who have had COVID-19 may not require booster shots to maintain protection, since the mRNA vaccines elicit such a powerful immune response in this group. However, experts caution that people who haven\u2019t had a previous infection will likely need them. Source: Healthline<\/p>\n","protected":false},"author":19,"featured_media":2580,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[43,1],"tags":[87,60,88,89],"class_list":["post-2579","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-digital-health-literacy","category-news","tag-booster-shot","tag-covid-19","tag-immune-response","tag-reinfection"],"yoast_head":"\nWill COVID-19 vaccines give lifelong immunity to the disease? 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