Мы в Telegram
Добавить новость

SHAMAN признан «новой легендой» на премии «Муз-ТВ»-2024

Актер Александр Петров снялся с женой Викторией Антоновой

Минэкологии предостерегло владельца в Ступине о недопустимости размещения отходов

Состояние мамы Заворотнюк заметно ухудшилось





Новости сегодня

Новости от TheMoneytizer

Could current COVID vaccines protect against future outbreaks? New study offers hope

Could current COVID vaccines protect against future outbreaks? New study offers hope

Researchers had the future in mind when they asked if current COVID-19 vaccines and boosters could also protect your body against future outbreaks. Here’s what you need to know.

Irene Wright | The Charlotte Observer (TNS)

Before March 2020, it was hard to imagine a global pandemic in the modern age.

Now, it’s hard to imagine our lives without one.

As COVID-19 has become less of an active part of our days and more a quick thought when we have a runny nose or cough, it’s time to think about what comes next — and how to stop another pandemic.

A group of researchers had the future in mind when they asked if current COVID-19 vaccines and boosters could also protect your body against future outbreaks in a study published in the journal Nature on May 15.

Here’s what you need to know:

What is immune imprinting?

Researchers from Washington University’s School of Medicine in St. Louis evaluated the ability of the COVID-19 shots to build up memory in the immune system through a process called immune imprinting.

“Immune imprinting is a phenomenon in which prior antigenic experiences influence responses to subsequent infection or vaccination,” according to the study.

This means that when the human body is exposed to an infection, whether by becoming infected or receiving a vaccination, the immune system can build up defenses against it, and those defenses stay in the body even when the infection has left.

“Imprinting is the natural result of how immunological memory works. A first vaccination triggers the development of memory immune cells,” researchers said in a May 17 news release from Washington University. “When people receive a second vaccination quite similar to the first, it reactivates memory cells elicited by the first vaccine. These memory cells dominate and shape the immune response to the subsequent vaccine.”

But since your body holds onto some “immunity,” it can make it difficult to create a vaccination for the following year that complements an already established immune response and doesn’t interfere.

Doctors already have to deal with this problem.

The annual flu vaccine is updated and adapted each year before the fall rollout to best target the strains of influenza that are particularly strong or infectious.

“In the case of the flu vaccine, imprinting has negative effects,” according to the release, and the cells that are supposed to produce antibodies to fight the virus instead crowd other antibody-producing cells, making the vaccine less effective.

The worry is that if people receive annual COVID-19 boosters, like health officials recommend for influenza, immune imprinting could make the population vulnerable when a new coronavirus, or even another similar virus, starts to spread again, the researchers said.

Their results tell a different story.

‘Gradually build up a stock’

Researchers measured antibodies in people who had all of the updated COVID-19 shots to see if their neutralizing antibodies came from the original variant from the first shots, an omicron variant from updated shots, or both.

They found that most people had antibodies that weren’t unique to the original variant or omicron, meaning the antibodies could also protect against similar strains that haven’t been identified, according to the release.

“The study … shows that people who were repeatedly vaccinated for COVID-19 — initially receiving shots aimed at the original variant, followed by boosters and updated vaccines targeting variants — generated antibodies capable of neutralizing a wide range of SARS-CoV-2 (the virus that causes COVID-19) variants and even some distantly related coronaviruses,” researchers said in the release.

The “cross-reacted” response also extended to far-reaching relatives of COVID-19, like the Middle Eastern Respiratory Syndrome (MERS), a coronavirus that was first reported in 2012.

Instead of getting in the way of the body’s natural ability to identify and respond to new variants, periodic re-vaccination against COVID-19 may “instead cause people to gradually build up a stock of broadly neutralizing antibodies that protect them from emerging SARS-CoV-2 variants and some other coronavirus species as well, even ones that have not yet emerged to infect humans,” according to the release.

This assumes, however, that a person maintains the shot regimen recommended by health officials.

Current COVID-19 vaccination guidelines

As of May 14, the Centers for Disease Control and Prevention recommends everyone over the age of 5 to receive one dose of the updated COVID-19 vaccine, whether they receive initial doses or not.

This includes the Pfizer-BioNTech, Moderna and Novavax shots.

Children between the ages of 6 months and 4 years old may need more than one dose to be up to date, including the newest 2023-2024 shots.

People with immune concerns or who are older than 65 should receive one dose of the new shot, as well as an additional spring shot with at least 4 months in between the two, the CDC says.

It is safe for people who are pregnant or who plan to become pregnant to receive updated doses.

If you are experiencing symptoms of COVID-19 — including but not limited to cough, fever, chills, nausea, vomiting, diarrhea, fatigue and muscle aches — remain isolated until you have gone at least 24 hours without a fever without taking any fever-reducing medications and your symptoms are improving overall, the CDC says.

©2024 The Charlotte Observer. Visit charlotteobserver.com. Distributed by Tribune Content Agency, LLC.

Читайте на 123ru.net


Новости 24/7 DirectAdvert - доход для вашего сайта



Частные объявления в Вашем городе, в Вашем регионе и в России



Smi24.net — ежеминутные новости с ежедневным архивом. Только у нас — все главные новости дня без политической цензуры. "123 Новости" — абсолютно все точки зрения, трезвая аналитика, цивилизованные споры и обсуждения без взаимных обвинений и оскорблений. Помните, что не у всех точка зрения совпадает с Вашей. Уважайте мнение других, даже если Вы отстаиваете свой взгляд и свою позицию. Smi24.net — облегчённая версия старейшего обозревателя новостей 123ru.net. Мы не навязываем Вам своё видение, мы даём Вам срез событий дня без цензуры и без купюр. Новости, какие они есть —онлайн с поминутным архивом по всем городам и регионам России, Украины, Белоруссии и Абхазии. Smi24.net — живые новости в живом эфире! Быстрый поиск от Smi24.net — это не только возможность первым узнать, но и преимущество сообщить срочные новости мгновенно на любом языке мира и быть услышанным тут же. В любую минуту Вы можете добавить свою новость - здесь.




Новости от наших партнёров в Вашем городе

Ria.city

Путин совершит на неделе региональную поездку и возложит цветы 22 июня

Воля на полдня. Громкие побеги из тюрем в России

Студентка УлГТУ стала участницей первого образовательного заезда арт-кластера «Таврида»

Современный жилой квартал обустроят в Нагатино-Садовниках

Музыкальные новости

Выездной Фотограф для всех желающих, ну и конечно Артистов и Музыкантов.

Hyundai привозит в Россию старый добрый седан по цене LADA Vesta

Свыше 40 мест для коллективных молитв в Курбан-байрам откроют в Подмосковье

Неблагодарный батька или о чем говорил президент Белоруссии с делегацией Азербайджана?

Новости России

В московском музее-заповеднике «Кузьминки-Люблино» пройдет фестиваль «Арт-пристань»

Двор колодец

Синоптик Позднякова: следующая неделя в Москве будет «ненастной»

Воля на полдня. Громкие побеги из тюрем в России

Экология в России и мире

Modest fashion day 2024

Более 3,5 тысячи зрителей пришло на «Город танцует в парках» в Реутове

Smena SS-2024

Лучшие образы на лето, от которых захватит дух

Спорт в России и мире

Самсонова вышла в четвертьфинал турнира WTA в Хертогенбосе

Саснович победила на старте квалификации турнира WTA-500 в Берлине

Карен Хачанов проиграл Вукичу во втором круге турнира ATP-250 в Хертогенбосхе

Теннисистка Самсонова вышла в финал турнира в Хертогенбосхе

Moscow.media

В Коми ввели штрафы за «склонение к абортам»

Любимый кроссовер Kia снова в России по привлекательным ценам. Они приятно удивят.

Прощайте, я от вас улетаю

Закат на Катуни











Топ новостей на этот час

Rss.plus






Современный жилой квартал обустроят в Нагатино-Садовниках

Студентка УлГТУ стала участницей первого образовательного заезда арт-кластера «Таврида»

Путин совершит на неделе региональную поездку и возложит цветы 22 июня

Специалисты МОЦОМД получили грамоты в День медицинского работника