Daily Sabah logo

Politics
Diplomacy Legislation War On Terror EU Affairs Elections News Analysis
TÜRKİYE
Istanbul Education Investigations Minorities Expat Corner Diaspora
World
Mid-East Europe Americas Asia Pacific Africa Syrian Crisis Islamophobia
Business
Automotive Economy Energy Finance Tourism Tech Defense Transportation News Analysis
Lifestyle
Health Environment Travel Food Fashion Science Religion History Feature Expat Corner
Arts
Cinema Music Events Portrait Reviews Performing Arts
Sports
Football Basketball Motorsports Tennis
Opinion
Columns Op-Ed Reader's Corner Editorial
PHOTO GALLERY
JOBS ABOUT US RSS PRIVACY CONTACT US
© Turkuvaz Haberleşme ve Yayıncılık 2023

Daily Sabah logo

عربي
  • Politics
    • Diplomacy
    • Legislation
    • War On Terror
    • EU Affairs
    • Elections
    • News Analysis
  • TÜRKİYE
    • Istanbul
    • Education
    • Investigations
    • Minorities
    • Expat Corner
    • Diaspora
  • World
    • Mid-East
    • Europe
    • Americas
    • Asia Pacific
    • Africa
    • Syrian Crisis
    • Islamophobia
  • Business
    • Automotive
    • Economy
    • Energy
    • Finance
    • Tourism
    • Tech
    • Defense
    • Transportation
    • News Analysis
  • Lifestyle
    • Health
    • Environment
    • Travel
    • Food
    • Fashion
    • Science
    • Religion
    • History
    • Feature
    • Expat Corner
  • Arts
    • Cinema
    • Music
    • Events
    • Portrait
    • Reviews
    • Performing Arts
  • Sports
    • Football
    • Basketball
    • Motorsports
    • Tennis
  • Gallery
  • Opinion
    • Columns
    • Op-Ed
    • Reader's Corner
    • Editorial
  • TV
  • Life
  • Health
  • Environment
  • Travel
  • Food
  • Fashion
  • Science
  • Religion
  • History
  • Feature
  • Expat Corner

COVID-19 roundup: Variant severity in kids, vaccines vs. immunity

by Reuters

Oct 10, 2021 - 11:20 am GMT+3
Sarah Staffiere adjusts a face covering on her daughter, Natalie, before school, in Waterville, Maine, U.S., Oct. 7, 2021. (AP Photo)
Sarah Staffiere adjusts a face covering on her daughter, Natalie, before school, in Waterville, Maine, U.S., Oct. 7, 2021. (AP Photo)
by Reuters Oct 10, 2021 11:20 am

In this week's roundup, the latest scientific research on the coronavirus and efforts to find treatments and vaccines suggest that the delta variant of COVID-19 does not make children sicker when compared to earlier forms of the virus, and infection-induced immune response appears to provide better protection over time, particularly against variants, than what vaccines can offer.

Children not sicker with delta

The delta variant of the coronavirus does not appear to cause more severe disease in children when compared to earlier forms of the virus, a U.K. study suggests.

Earlier this year, the research team found the alpha variant of the virus did not appear to make children sicker than the so-called wild, or original, form of the virus, first seen in China. New data suggests that kids also do not get any sicker from delta than they did from alpha.

Researchers compared two groups of school-age children with COVID-19: 694 infected with the alpha variant between late December 2020 and early May 2021, and 706 infected with delta between late May and early July.

As reported on Thursday on medRxiv ahead of peer review, children infected with delta had slightly more symptoms. But in both groups, very few children needed to be hospitalized and long periods of illness were uncommon.

In both groups, half of the children were sick for no more than five days. The researchers lacked information on differences between the groups that might have influenced the results, such as whether lockdowns were in place, and the effects of different seasons.

"Our data suggest that clinical characteristics of COVID-19 due to the delta variant in children are broadly similar to COVID-19 due to other variants," the researchers concluded. That appears to jibe with data reported by the U.S. Centers for Disease Control and Prevention (CDC).

"Although we are seeing more cases in children ... these studies demonstrated that there was not increased disease severity in children," CDC Director Dr. Rochelle Walensky said of the delta-driven wave in a statement.

"More children have COVID-19 because there is more disease in the community."

Stronger immune response

In COVID-19 survivors, important components of the body's immune response called memory B cells continue to evolve and get stronger for at least several months, producing highly potent antibodies that can neutralize new variants of the virus, a new study has found.

By comparison, vaccine-induced memory B cells are less robust, evolving for only a few weeks and never "learning" to protect against variants, researchers reported in a paper published on Thursday in Nature.

COVID-19 vaccines do induce more antibodies than the immune system does after a coronavirus infection. But the immune system appears to outshine vaccines when it comes to memory B cells.

Regardless of whether antibodies are induced by infection or vaccine, their levels drop within six months in many people. But memory B cells stand ready to produce new antibodies if the body encounters the virus.

Prior to this study, there had been little data on how vaccine-induced B cells compare to infection-induced B cells.

The researchers caution that the benefits of stronger memory B cells after infection do not outweigh the risks that come with COVID-19.

"While a natural infection may induce maturation of antibodies with broader activity than a vaccine does, a natural infection can also kill you," said study leader Michel Nussenzweig of Rockefeller University, in a statement.

"A vaccine won't do that and, in fact, protects against the risk of serious illness or death from infection."

  • shortlink copied
  • Last Update: Oct 10, 2021 7:16 pm
    RELATED TOPICS
    fight-against-terrorism DEUTSCHE-BANK US-LIBYA-RELATIONS
    KEYWORDS
    covid-19 roundup covid-19 pandemic delta variant childrens health memory b cells covid-19 vaccines
    The Daily Sabah Newsletter
    Keep up to date with what’s happening in Turkey, it’s region and the world.
    You can unsubscribe at any time. By signing up you are agreeing to our Terms of Use and Privacy Policy. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
    An amateur photographer Vincent Cornelissen captures a bean goose flying upside down. (Photo from Instagram @b0unce1971)

    It is showing off: Photographer captures goose flying upside down

    ANIMALS-ARCHIVES
    A crude oil tanker sails in the Bosporus, on its way to the Mediterranean Sea, in Istanbul, Türkiye, Dec. 11, 2022. (Reuters Photo)

    Türkiye registers better-than-expected current account gap

    current-account-balance

    Accumulated tension of hundreds of years moved Anatolia by 3m

    Harold-Tobin

    Istanbul's consulate chronicles: Sudhi Choudhary, Consul General of India

    SUDHI-CHOUDHARY
    No Image
    Perseid meteor showers captivate stargazers across Türkiye
    PHOTOGALLERY
    • POLITICS
    • Diplomacy
    • Legislation
    • War On Terror
    • EU Affairs
    • News Analysis
    • TÜRKİYE
    • Istanbul
    • Education
    • Investigations
    • Minorities
    • Diaspora
    • World
    • Mid-East
    • Europe
    • Americas
    • Asia Pacific
    • Africa
    • Syrian Crisis
    • İslamophobia
    • Business
    • Automotive
    • Economy
    • Energy
    • Finance
    • Tourism
    • Tech
    • Defense
    • Transportation
    • News Analysis
    • Lifestyle
    • Health
    • Environment
    • Travel
    • Food
    • Fashion
    • Science
    • Religion
    • History
    • Feature
    • Expat Corner
    • Arts
    • Cinema
    • Music
    • Events
    • Portrait
    • Performing Arts
    • Reviews
    • Sports
    • Football
    • Basketball
    • Motorsports
    • Tennis
    • Opinion
    • Columns
    • Op-Ed
    • Reader's Corner
    • Editorial
    • Photo gallery
    • Jobs
    • privacy
    • about us
    • contact us
    • RSS
    © Turkuvaz Haberleşme ve Yayıncılık 2021