Breaking News
Get Actionable Insights with InvestingPro+: Start 7 Day FREE Trial Register here
Investing Pro 0
Ad-Free Version. Upgrade your Investing.com experience. Save up to 40% More details

Explainer-All U.S. adults qualify for COVID-19 boosters; which is best?

Stock MarketsNov 20, 2021 07:05AM ET
Saved. See Saved Items.
This article has already been saved in your Saved Items
 
© Reuters. FILE PHOTO: A woman receives the Pfizer-BioNTech coronavirus disease (COVID-19) vaccine as a booster dose at Skippack Pharmacy in Schwenksville, Pennsylvania, U.S., August 14, 2021. REUTERS/Hannah Beier/File Photo

By Julie Steenhuysen

CHICAGO (Reuters) - The U.S. Centers for Disease Control and Prevention on Friday expanded availability of COVID-19 booster shots to all American adults, hoping to preserve vaccine protection against the fast-spreading Delta variant.

Previously, the agency had recommended booster shots only for people age 65 and older, or at high-risk from COVID, and said they could choose a different vaccine from the one they received for their initial inoculation.

Now, millions more Americans face the choice of which booster to use. Here is what some experts advise:

THE LATEST GUIDELINES

Prior CDC booster guidance was based on meeting specific age, health or other risk requirements that left some people confused about whether they were eligible.

The new guidance aims to clarify that. It says all adults 18 and older who received their second dose of a Pfizer/BioNTech or Moderna (NASDAQ:MRNA) vaccine at least six months ago are eligible for a booster shot.

Advisers to the CDC also recommended boosters to adults ages 50 and older. Prior guidance recommended boosters for all ages 65 and older.

Many people 18 to 64 wondered whether they were qualified for boosters under prior guidance, which permitted them for people that age with medical conditions that increase their risk of serious disease, such as obesity or diabetes. It also included people at greater risk due to their professions or living situations.

For adults who initially received the single-dose Johnson & Johnson (NYSE:JNJ) vaccine, guidance remains unchanged: they should receive any one of the authorized COVID-19 boosters two months later.

WHICH BOOSTER IS RIGHT?

U.S. booster guidance permits individuals to mix and match, using the same vaccine as their original series or a different one of their choosing.

Although the choices may seem confusing, Dr. Monica Gandhi, an infectious disease expert at the University of California, San Francisco, tried to break it down simply.

"Fundamentally, you can get whatever you want for your booster, except for something very particular: Johnson & Johnson should be followed by an mRNA (from Pfizer (NYSE:PFE) or Moderna), period."

The FDA cleared a second J&J shot based on data showing increased efficacy against COVID-19 to 94%, up from 72% as a single-dose vaccine.

But a U.S.-government study of mixed booster shots found people who followed a J&J shot with an mRNA booster had significantly higher levels of protective antibodies.

The mix and match policy gives physicians more leeway to advise patients at risk for certain side effects to try a different vaccine. It also allows for the possibility that not every pharmacy or doctor's office will carry all three types of boosters.

PFIZER OR MODERNA?

For those who got mRNA vaccines, the evidence suggesting a need for a booster is strongest for older adults who got the Pfizer/BioNTech shots, said Dr. Paul Offit, an infectious disease expert at the University of Pennsylvania and a member of the FDA's vaccine advisory panel.

For younger individuals initially vaccinated with an mRNA vaccine, the decision is more nuanced. According to data presented on Friday to a CDC vaccine advisory panel, protection from the Pfizer/BioNTech vaccine appears to wane more quickly than the Moderna shots, but both still do a good job at preventing hospitalization and death.

Pfizer's shot contains 30 micrograms of vaccine and so does its booster. Moderna's original shots were 100-microgram doses, but the booster is approved as a half dose. It is not yet known whether Moderna's lower-dose booster will have the same durability as the original shots.

Kathryn Edwards, a vaccine researcher at Vanderbilt University Medical Center, said Moderna's lower dose may reduce the short-term side effects such as fever and body aches associated with the higher-dose Moderna shot.

Vaccines from both Moderna and Pfizer have been linked with a heart inflammation side effect known as myocarditis in younger men, but data presented to CDC advisers on Friday suggests a booster dose does not increase that risk.

Explainer-All U.S. adults qualify for COVID-19 boosters; which is best?
 

Related Articles

Add a Comment

Comment Guidelines

We encourage you to use comments to engage with other users, share your perspective and ask questions of authors and each other. However, in order to maintain the high level of discourse we’ve all come to value and expect, please keep the following criteria in mind:  

  •            Enrich the conversation, don’t trash it.

  •           Stay focused and on track. Only post material that’s relevant to the topic being discussed. 

  •           Be respectful. Even negative opinions can be framed positively and diplomatically. Avoid profanity, slander or personal attacks directed at an author or another user. Racism, sexism and other forms of discrimination will not be tolerated.

  • Use standard writing style. Include punctuation and upper and lower cases. Comments that are written in all caps and contain excessive use of symbols will be removed.
  • NOTE: Spam and/or promotional messages and comments containing links will be removed. Phone numbers, email addresses, links to personal or business websites, Skype/Telegram/WhatsApp etc. addresses (including links to groups) will also be removed; self-promotional material or business-related solicitations or PR (ie, contact me for signals/advice etc.), and/or any other comment that contains personal contact specifcs or advertising will be removed as well. In addition, any of the above-mentioned violations may result in suspension of your account.
  • Doxxing. We do not allow any sharing of private or personal contact or other information about any individual or organization. This will result in immediate suspension of the commentor and his or her account.
  • Don’t monopolize the conversation. We appreciate passion and conviction, but we also strongly believe in giving everyone a chance to air their point of view. Therefore, in addition to civil interaction, we expect commenters to offer their opinions succinctly and thoughtfully, but not so repeatedly that others are annoyed or offended. If we receive complaints about individuals who take over a thread or forum, we reserve the right to ban them from the site, without recourse.
  • Only English comments will be allowed.

Perpetrators of spam or abuse will be deleted from the site and prohibited from future registration at Investing.com’s discretion.

Write your thoughts here
 
Are you sure you want to delete this chart?
 
Post
Post also to:
 
Replace the attached chart with a new chart ?
1000
Your ability to comment is currently suspended due to negative user reports. Your status will be reviewed by our moderators.
Please wait a minute before you try to comment again.
Thanks for your comment. Please note that all comments are pending until approved by our moderators. It may therefore take some time before it appears on our website.
Comments (5)
Dead Cat Bounce
DeadCatBounce1 Nov 21, 2021 6:18PM ET
Saved. See Saved Items.
This comment has already been saved in your Saved Items
Please choose : mRNA or mRNA ?
Eric Ritterschmied
Eric Ritterschmied Nov 21, 2021 8:12AM ET
Saved. See Saved Items.
This comment has already been saved in your Saved Items
great business plan...booster every 6 months or Yearly...
Kaveh Sun
Kaveh Sun Nov 20, 2021 11:48AM ET
Saved. See Saved Items.
This comment has already been saved in your Saved Items
Ca already made it avail to all long before Cdc expanded it. This is just like a flu shot. U get a flu shot, doesnt mean u dont get a flu.
Todd Gray
Todd Gray Nov 20, 2021 10:25AM ET
Saved. See Saved Items.
This comment has already been saved in your Saved Items
hasn't it just been proven mRNA vaccines interfere with the human DNA repair process? in a few decades, medicine will have a boon of cancer patients. maybe they'll claim aliens have made contact, and an unearthly virus has swept the earth.
James White
James White Nov 20, 2021 8:22AM ET
Saved. See Saved Items.
This comment has already been saved in your Saved Items
I took first two, no more for me
 
Are you sure you want to delete this chart?
 
Post
 
Replace the attached chart with a new chart ?
1000
Your ability to comment is currently suspended due to negative user reports. Your status will be reviewed by our moderators.
Please wait a minute before you try to comment again.
Add Chart to Comment
Confirm Block

Are you sure you want to block %USER_NAME%?

By doing so, you and %USER_NAME% will not be able to see any of each other's Investing.com's posts.

%USER_NAME% was successfully added to your Block List

Since you’ve just unblocked this person, you must wait 48 hours before renewing the block.

Report this comment

I feel that this comment is:

Comment flagged

Thank You!

Your report has been sent to our moderators for review
Disclaimer: Fusion Media would like to remind you that the data contained in this website is not necessarily real-time nor accurate. All CFDs (stocks, indexes, futures) and Forex prices are not provided by exchanges but rather by market makers, and so prices may not be accurate and may differ from the actual market price, meaning prices are indicative and not appropriate for trading purposes. Therefore Fusion Media doesn`t bear any responsibility for any trading losses you might incur as a result of using this data.

Fusion Media or anyone involved with Fusion Media will not accept any liability for loss or damage as a result of reliance on the information including data, quotes, charts and buy/sell signals contained within this website. Please be fully informed regarding the risks and costs associated with trading the financial markets, it is one of the riskiest investment forms possible.
Continue with Google
or
Sign up with Email