COVID-19 면역력은 수십 년 동안 지속될 수 있을까? VIDEO: Could COVID-19 immunity last decades? Here’s the science.

Could COVID-19 immunity last decades? Here’s the science.

By Nicoletta Lanese - Staff Writer 2 days ago

The body builds a protective fleet of immune cells when infected with COVID-19, and in many people, those defenses linger for more than six months after the infection clears, according to a new study.

Illustration of b cells and antibodies(Image: © Shutterstock)


COVID-19 면역력은 수십 년 동안 지속될 수 있을까?  

   새로운 연구에 따르면, 신체는 COVID-19에 감염되었을 때 면역세포의 보호대를 형성하며, 많은 사람들에게 방어막은  6개월 이상 지속된다고 한다.

사실 면역세포는 매우 안정되어 있어서 바이러스에 대한 면역력이 적어도 몇 년은 지속될 수 있다고 연구 저자들은 말했다. 캘리포니아의 라 졸라 면역학 연구소의 바이러스학자인 셰인 크로티 공동 저자는 뉴욕 타임즈와의 인터뷰에서 "이 정도의 면역력은 심각한 질병으로 사람들이 병원에 입원하는 것을 막을 것"이라고 말했다.

그러나 이번 연구에 참여하지 않은 시나이 아이칸 산 의대 의대 니콜라스 바브렛 조교수는 라이브 사이언스지에 "코로나 바이러스에 대한 면역력이 얼마나 지속되는지에 대해 예측하는 것은 "꼼수"일 수 있다"고 말했다.

바브렛 박사는 e메일을 통해 "6개월 동안 면역세포가 환자들에게 축적돼 1년 만에 갑자기 하락하는 것을 보면 놀라울 것"이라고 말했다. 그러나 "사스-CoV-2 면역력이 수십 년간 지속될지 여부를 알 수 있는 유일한 방법은 같은 기간 동안 환자들을 연구하는 것"이라고 말했다.

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Ki Chul Hwang Conpaper editor curator

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The immune cells appear so stable, in fact, that immunity to the virus may last at least several years, the study authors said. "That amount of [immune] memory would likely prevent the vast majority of people from getting hospitalized disease, severe disease, for many years," co-author Shane Crotty, a virologist at the La Jolla Institute of Immunology in California, told The New York Times, which first reported on the study.

Schematic representation of SARS-CoV-2 structure. This is an enveloped, positive-sense RNA virus with four main structural proteins, including spike (S) and membrane (M) glycoproteins, as well as envelope (E) and nucleocapsid (N) proteins. 

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That said, making predictions about how long immunity to the coronavirus lasts can be "tricky," Nicolas Vabret, an assistant professor of medicine at the Mount Sinai Icahn School of Medicine, who was not involved in the study, told Live Science.

"It would be surprising to see the ... immune cells build up in patients over six months and suddenly crash after one year," Vabret said in an email. But "the only way to know whether SARS-CoV-2 immunity will last decades is to study the patients over the same period of time." 

In other words, we won't know exactly how long immunity lasts without continuing to study those who have recovered from COVID-19. However, the new study, posted Nov. 16 to the preprint database bioRxiv, does provide strong hints that the protection is long-lived — although clearly not in all people, as there have been several cases of individuals being reinfected with the coronavirus after recovering.

How long does coronavirus immunity last? | COVID-19 Special  kcontents