{"id":647849,"date":"2025-01-03T08:50:20","date_gmt":"2025-01-03T05:50:20","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/5-things-we-know-and-still-dont-know-about-covid-5-years-after-it-appeared\/"},"modified":"2025-01-03T08:50:20","modified_gmt":"2025-01-03T05:50:20","slug":"5-things-we-know-and-still-dont-know-about-covid-5-years-after-it-appeared","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/5-things-we-know-and-still-dont-know-about-covid-5-years-after-it-appeared\/","title":{"rendered":"#5 things we know and still don&#8217;t know about COVID, 5 years after it appeared"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a26e73412f59\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a26e73412f59\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/5-things-we-know-and-still-dont-know-about-covid-5-years-after-it-appeared\/#Where_did_the_SARS-CoV-2_virus_come_from\" >Where did the SARS-CoV-2 virus come from?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/buradabiliyorum.com\/en\/5-things-we-know-and-still-dont-know-about-covid-5-years-after-it-appeared\/#How_many_people_died_from_COVID-19\" >How many people died from COVID-19?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/buradabiliyorum.com\/en\/5-things-we-know-and-still-dont-know-about-covid-5-years-after-it-appeared\/#What_vaccines_were_made_available\" >What vaccines were made available?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/buradabiliyorum.com\/en\/5-things-we-know-and-still-dont-know-about-covid-5-years-after-it-appeared\/#Which_variant_is_dominating_now\" >Which variant is dominating now?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/buradabiliyorum.com\/en\/5-things-we-know-and-still-dont-know-about-covid-5-years-after-it-appeared\/#What_do_we_know_about_long_COVID\" >What do we know about long COVID?<\/a><\/li><\/ul><\/nav><\/div>\n<div>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2025\/5-things-we-know-and-s.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2025\/5-things-we-know-and-s.jpg\" data-sub-html=\"This undated electron microscope image made available by the U.S. National Institutes of Health in February 2020 shows the Novel Coronavirus SARS-CoV-2, yellow, emerging from the surface of cells, pink, cultured in the lab. Also known as 2019-nCoV, the virus causes COVID-19. The sample was isolated from a patient in the U.S. Credit: NIAID-RML via AP, File\">\n<figure class=\"article-img\">\n            <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2025\/5-things-we-know-and-s.jpg\" alt=\"5 things we know and still don't know about COVID, 5 years after it appeared\" title=\"This undated electron microscope image made available by the U.S. National Institutes of Health in February 2020 shows the Novel Coronavirus SARS-CoV-2, yellow, emerging from the surface of cells, pink, cultured in the lab. Also known as 2019-nCoV, the virus causes COVID-19. The sample was isolated from a patient in the U.S. Credit: NIAID-RML via AP, File\" width=\"800\" height=\"530\"\/><figcaption class=\"text-darken text-low-up text-truncate-js text-truncate mt-3\">\n                This undated electron microscope image made available by the U.S. National Institutes of Health in February 2020 shows the Novel Coronavirus SARS-CoV-2, yellow, emerging from the surface of cells, pink, cultured in the lab. Also known as 2019-nCoV, the virus causes COVID-19. The sample was isolated from a patient in the U.S. Credit: NIAID-RML via AP, File<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<p>Five years ago, a cluster of people in Wuhan, China, fell sick with a virus never before seen in the world.<\/p>\n<p>The germ didn&#8217;t have a name, nor did the illness it would cause. It wound up setting off a pandemic that exposed deep inequities in the global health system and reshaped public opinion about how to control deadly emerging viruses.<\/p>\n<p>The virus is still with us, though humanity has built up immunity through vaccinations and infections. It&#8217;s less deadly than it was in the pandemic&#8217;s early days and it no longer tops the list of leading causes of death. But the virus is evolving, meaning scientists must track it closely.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Where_did_the_SARS-CoV-2_virus_come_from\"><\/span>Where did the SARS-CoV-2 virus come from?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>We don&#8217;t know. Scientists think the most likely scenario is that it circulated in bats, like many coronaviruses. They think it then infected another species, probably racoon dogs, civet cats or bamboo rats, which in turn infected humans handling or butchering those animals at a market in Wuhan, where the first <a rel=\"nofollow\" target=\"_blank\" href=\"https:\/\/www.cdc.gov\/museum\/timeline\/covid19.html\" target=\"_blank\">human cases appeared in late November 2019<\/a>.<\/p>\n<p>That&#8217;s a known pathway for disease transmission and likely triggered the first epidemic of a similar virus, known as SARS. But this theory has not been proven for the virus that causes COVID-19. Wuhan is home to several research labs involved in collecting and studying coronaviruses, fueling debate over whether the virus instead may have leaked from one.<\/p>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2025\/5-things-we-know-and-s-1.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2025\/5-things-we-know-and-s-1.jpg\" data-sub-html=\"A medical worker takes a swab sample from a worker of the China Star Optoelectronics Technology (CSOT) company during a round of COVID-19 tests in Wuhan in central China's Hubei province, Aug. 5, 2021. Credit: Chinatopix via AP, File\">\n<figure class=\"article-img text-center\">\n            <img decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2025\/5-things-we-know-and-s-1.jpg\" alt=\"5 things we know and still don't know about COVID, 5 years after it appeared\" title=\"A medical worker takes a swab sample from a worker of the China Star Optoelectronics Technology (CSOT) company during a round of COVID-19 tests in Wuhan in central China's Hubei province, Aug. 5, 2021. Credit: Chinatopix via AP, File\"\/><figcaption class=\"text-left text-darken text-truncate text-low-up mt-3\">\n                A medical worker takes a swab sample from a worker of the China Star Optoelectronics <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/technology\/\" data-internallinksmanager029f6b8e52c=\"4\" title=\"Technology\" target=\"_blank\" rel=\"noopener\">Technology<\/a> (CSOT) company during a round of COVID-19 tests in Wuhan in central China&#8217;s Hubei province, Aug. 5, 2021. Credit: Chinatopix via AP, File<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<p>It&#8217;s a difficult scientific puzzle to crack in the best of circumstances. The effort has been made even more challenging by political sniping around the virus&#8217; origins and by what international researchers say are moves by China to withhold evidence that could help.<\/p>\n<p>The true origin of the pandemic may not be known for many years\u2014if ever.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_many_people_died_from_COVID-19\"><\/span>How many people died from COVID-19?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Probably more than 20 million. The World Health Organization has said member countries reported more than 7 million deaths from COVID-19 but the true death toll is estimated to be at least three times higher.<\/p>\n<p>In the U.S., an average of about 900 people a week have died of COVID-19 over the past year, according to the U.S. Centers for Disease Control and Prevention.<\/p>\n<p>The coronavirus continues to affect older adults the most. Last winter in the U.S., people age 75 and older accounted for about half the nation&#8217;s COVID-19 hospitalizations and in-hospital deaths, according to the CDC.<\/p>\n<p>&#8220;We cannot talk about COVID in the past, since it&#8217;s still with us,&#8221; WHO director Tedros Adhanom Ghebreyesus said.<\/p>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2025\/5-things-we-know-and-s-2.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2025\/5-things-we-know-and-s-2.jpg\" data-sub-html=\"Cemetery workers in protective gear bury a person alongside rows of freshly dug graves at the Vila Formosa cemetery in Sao Paulo, Brazil, April 1, 2020. Credit: AP Photo\/Andre Penner, File\">\n<figure class=\"article-img text-center\">\n            <img decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2025\/5-things-we-know-and-s-2.jpg\" alt=\"5 things we know and still don't know about COVID, 5 years after it appeared\" title=\"Cemetery workers in protective gear bury a person alongside rows of freshly dug graves at the Vila Formosa cemetery in Sao Paulo, Brazil, April 1, 2020. Credit: AP Photo\/Andre Penner, File\"\/><figcaption class=\"text-left text-darken text-truncate text-low-up mt-3\">\n                Cemetery workers in protective gear bury a person alongside rows of freshly dug graves at the Vila Formosa cemetery in Sao Paulo, Brazil, April 1, 2020. Credit: AP Photo\/Andre Penner, File<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_vaccines_were_made_available\"><\/span>What vaccines were made available?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Scientists and vaccine-makers broke speed records developing COVID-19 vaccines that have saved tens of millions of lives worldwide\u2014and were the critical step to getting life back to normal.<\/p>\n<p>Less than a year after China identified the virus, health authorities in the U.S. and Britain cleared vaccines made by Pfizer and Moderna. Years of earlier research\u2014including Nobel-winning discoveries that were key to making the new technology work\u2014gave a head start for so-called mRNA vaccines.<\/p>\n<p>Today, there&#8217;s also a more traditional vaccine made by Novavax, and some countries have tried additional options. Rollout to poorer countries was slow but the WHO estimates more than 13 billion doses of COVID-19 vaccines have been administered globally since 2021.<\/p>\n<p>The vaccines aren&#8217;t perfect. They do a good job of preventing severe disease, hospitalization and death, and have proven very safe, with only rare serious side effects. But protection against milder infection begins to wane after a few months.<\/p>\n<p>Like flu vaccines, COVID-19 shots must be updated regularly to match the ever-evolving virus\u2014contributing to public frustration at the need for repeated vaccinations. Efforts to develop next-generation vaccines are underway, such as nasal vaccines that researchers hope might do a better job of blocking infection.<\/p>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2025\/5-things-we-know-and-s-3.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2025\/5-things-we-know-and-s-3.jpg\" data-sub-html=\"Dr. Sydney Sewall fills a syringe with the COVID-19 vaccine at the Augusta Armory, Dec. 21, 2021, in Augusta, Maine. Credit: AP Photo\/Robert F. Bukaty, File\">\n<figure class=\"article-img text-center\">\n            <img decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2025\/5-things-we-know-and-s-3.jpg\" alt=\"5 things we know and still don't know about COVID, 5 years after it appeared\" title=\"Dr. Sydney Sewall fills a syringe with the COVID-19 vaccine at the Augusta Armory, Dec. 21, 2021, in Augusta, Maine. Credit: AP Photo\/Robert F. Bukaty, File\"\/><figcaption class=\"text-left text-darken text-truncate text-low-up mt-3\">\n                Dr. Sydney Sewall fills a syringe with the COVID-19 vaccine at the Augusta Armory, Dec. 21, 2021, in Augusta, Maine. Credit: AP Photo\/Robert F. Bukaty, File<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Which_variant_is_dominating_now\"><\/span>Which variant is dominating now?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Genetic changes called mutations h<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/download-scripts-themes-apps\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Download Scripts &amp; Themes &amp; Apps\" target=\"_blank\" rel=\"noopener\">app<\/a>en as viruses make copies of themselves. And this virus has proven to be no different.<\/p>\n<p>Scientists named these variants after Greek letters: alpha, beta, gamma, delta and omicron. Delta, which became dominant in the U.S. in June 2021, raised a lot of concerns because it was twice as likely to lead to hospitalization as the first version of the virus.<\/p>\n<p>Then in late November 2021, a new variant came on the scene: omicron.<\/p>\n<p>&#8220;It spread very rapidly,&#8221; dominating within weeks, said Dr. Wesley Long, a pathologist at Houston Methodist in Texas. &#8220;It drove a huge spike in cases compared to anything we had seen previously.&#8221;<\/p>\n<p>But on average, the WHO said, it caused less severe disease than delta. Scientists believe that may be partly because immunity had been building due to vaccination and infections.<\/p>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2025\/5-things-we-know-and-s-4.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2025\/5-things-we-know-and-s-4.jpg\" data-sub-html=\"Nancy Rose, who contracted COVID-19 in 2021 and exhibits long-haul symptoms including brain fog and memory difficulties, pauses while organizing her desk space, Jan. 25, 2022, in Port Jefferson, N.Y. Credit: AP Photo\/John Minchillo, File\">\n<figure class=\"article-img text-center\">\n            <img decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2025\/5-things-we-know-and-s-4.jpg\" alt=\"5 things we know and still don't know about COVID, 5 years after it appeared\" title=\"Nancy Rose, who contracted COVID-19 in 2021 and exhibits long-haul symptoms including brain fog and memory difficulties, pauses while organizing her desk space, Jan. 25, 2022, in Port Jefferson, N.Y. Credit: AP Photo\/John Minchillo, File\"\/><figcaption class=\"text-left text-darken text-truncate text-low-up mt-3\">\n                Nancy Rose, who contracted COVID-19 in 2021 and exhibits long-haul symptoms including brain fog and memory difficulties, pauses while organizing her desk space, Jan. 25, 2022, in Port Jefferson, N.Y. Credit: AP Photo\/John Minchillo, File<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<p>&#8220;Ever since then, we just sort of keep seeing these different subvariants of omicron accumulating more different mutations,&#8221; Long said. &#8220;Right now, everything seems to locked on this omicron branch of the tree.&#8221;<\/p>\n<p>The omicron relative now dominant in the U.S. is called XEC, which accounted for 45% of variants circulating nationally in the two-week period ending Dec. 21, the <a rel=\"nofollow\" target=\"_blank\" href=\"https:\/\/covid.cdc.gov\/covid-data-tracker\/#variant-proportions\" target=\"_blank\">CDC<\/a> said. Existing COVID-19 medications and the latest vaccine booster should be effective against it, Long said, since &#8220;it&#8217;s really sort of a remixing of variants already circulating.&#8221;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_do_we_know_about_long_COVID\"><\/span>What do we know about long COVID?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Millions of people remain in limbo with a sometimes disabling, often invisible, legacy of the pandemic called long COVID.<\/p>\n<p>It can take several weeks to bounce back after a bout of COVID-19, but some people develop more persistent problems. The symptoms that last at least three months, sometimes for years, include fatigue, cognitive trouble known as &#8220;brain fog,&#8221; pain and cardiovascular problems, among others.<\/p>\n<ul class=\"article-gallery js-article-gallery\">\n<li data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2025\/5-things-we-know-and-s-5.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2025\/5-things-we-know-and-s-5.jpg\" data-sub-html=\"People attend an exhibition on the city's fight against the coronavirus in Wuhan in central China's Hubei province, Jan. 23, 2021. Credit: AP Photo\/Ng Han Guan, File\">\n<figure class=\"article-img text-center\">\n                <img decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800\/2025\/5-things-we-know-and-s-5.jpg\" alt=\"5 things we know and still don't know about COVID, 5 years after it appeared\"\/><figcaption class=\"text-left text-darken text-low-up text-truncate mt-3\">\n                    People attend an exhibition on the city&#8217;s fight against the coronavirus in Wuhan in central China&#8217;s Hubei province, Jan. 23, 2021. Credit: AP Photo\/Ng Han Guan, File<br \/>\n                <\/figcaption><\/figure>\n<\/li>\n<li data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2025\/5-things-we-know-and-s-6.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2025\/5-things-we-know-and-s-6.jpg\" data-sub-html=\"Denmark's Jonas Vingegaard, left, and teammate Matteo Jorgenson, of the U.S., wear face masks to protect themselves from the Corona virus prior to the start of the fourteenth stage of the Tour de France cycling race over 151.9 kilometers (94.4 miles) with start in Pau and finish in Saint-Lary-Soulan Pla d'Adet, France, July 13, 2024. Several riders had to abandon the race after contracting COVID-19. Credit: AP Photo\/Daniel Cole, File\">\n<figure class=\"article-img text-center\">\n                <img decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800\/2025\/5-things-we-know-and-s-6.jpg\" alt=\"5 things we know and still don't know about COVID, 5 years after it appeared\"\/><figcaption class=\"text-left text-darken text-low-up text-truncate mt-3\">\n                    Denmark&#8217;s Jonas Vingegaard, left, and teammate Matteo Jorgenson, of the U.S., wear face masks to protect themselves from the Corona virus prior to the start of the fourteenth stage of the Tour de France cycling race over 151.9 kilometers (94.4 miles) with start in Pau and finish in Saint-Lary-Soulan Pla d&#8217;Adet, France, July 13, 2024. Several riders had to abandon the race after contracting COVID-19. Credit: AP Photo\/Daniel Cole, File<br \/>\n                <\/figcaption><\/figure>\n<\/li>\n<\/ul>\n<p>Doctors don&#8217;t know why only some people get long COVID. It can happen even after a mild case and at any age, although rates have declined since the pandemic&#8217;s early years. Studies show vaccination can lower the risk.<\/p>\n<p>It also isn&#8217;t clear what causes long COVID, which complicates the search for treatments. One important clue: Increasingly researchers are discovering that remnants of the coronavirus can persist in some patients&#8217; bodies long after their initial infection, although that can&#8217;t explain all cases.<\/p>\n<p class=\"article-main__note mt-4\">\n                                                \u00a9 2025 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed without permission.\n                                            <\/p>\n<p>                                        <!-- print only --><\/p>\n<div class=\"d-none d-print-block\">\n<p>\n                                                 <strong>Citation<\/strong>:<br \/>\n                                                 5 things we know and still don&#8217;t know about COVID, 5 years after it appeared (2025, January 2)<br \/>\n                                                 retrieved 3 January 2025<br \/>\n                                                 from https:\/\/medicalxpress.com\/<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/news\/\" data-internallinksmanager029f6b8e52c=\"2\" title=\"News\" target=\"_blank\" rel=\"noopener\">news<\/a>\/2025-01-dont-covid-years.html\n                                            <\/p>\n<p>\n                                            This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no<br \/>\n                                            part may be reproduced without the written permission. The content is provided for information purposes only.\n                                            <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<p><script id=\"facebook-jssdk\" async=\"\" src=\"https:\/\/connect.facebook.net\/en_US\/sdk.js\"><\/script><\/p>\n<blockquote><p><strong><span style=\"color: #ff6600;\">If you liked the article, do not forget to share it with your friends. Follow us on\u00a0<span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/news.google.com\/publications\/CAAqBwgKMN63nwsw68G3Aw\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google News<\/a><\/span>\u00a0too, click on the star and choose us from your favorites.<\/span><\/strong><\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\"><strong>If you want to read more Like this articles, you can visit our <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/en.buradabiliyorum.com\/category\/sciencee\/\" target=\"_blank\" >Science category.<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<p><span style=\"color: black;\"><a style=\"color: #ff9900;\" href=\"https:\/\/medicalxpress.com\/news\/2025-01-dont-covid-years.html\" target=\"_blank\" >Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This undated electron microscope image made available by the U.S. National Institutes of Health in February 2020 shows the Novel Coronavirus SARS-CoV-2, yellow, emerging from the surface of cells, pink, cultured in the lab. Also known as 2019-nCoV, the virus causes COVID-19. The sample was isolated from a patient in the U.S. Credit: NIAID-RML via&#8230;<\/p>\n","protected":false},"author":1,"featured_media":647850,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2025\/5-things-we-know-and-s.jpg","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-647849","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sciencee"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/647849","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=647849"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/647849\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/647850"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=647849"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=647849"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=647849"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}