Breaking News
0
Ad-Free Version. Upgrade your Investing.com experience. Save up to 40% More details

U.S. CDC internal report says Delta variant as contagious as chickenpox - report

CoronavirusJul 30, 2021 09:06AM ET
Saved. See Saved Items.
This article has already been saved in your Saved Items
 
2/2 © Reuters. FILE PHOTO: A general view of the Centers for Disease Control and Prevention (CDC) headquarters in Atlanta, Georgia September 30, 2014. REUTERS/Tami Chappell/File Photo 2/2

(Reuters) - The U.S. Centers for Disease Control and Prevention (CDC) has described the Delta variant of the coronavirus as being as transmissible as chickenpox and cautioned it could cause severe disease, the Washington Post said, citing an internal CDC document.

The variant was also more likely to break through protections afforded by the vaccines, but the health authority said such incidents were very rare, the CDC report posted on the Washington Post website showed. https://

In its summary, the CDC report said Delta is highly contagious, likely more severe than other variants and breakthrough infections may be as transmissible as unvaccinated cases.

Still, the CDC's figures show that the vaccines are highly effective in preventing serious illness, hospitalisation and death.

The findings add to evidence of how the Delta variant, the fastest and most formidable version of the coronavirus that causes COVID-19, has upended assumptions among virologists and epidemiologists about the disease.

Delta has become the dominant variant globally, documented in 132 countries to date, according to the World Health Organization.

On Tuesday, the CDC reversed course on guidance for mask wearing, reinstituting them as a precaution against the possible transmission of the virus by fully vaccinated people.

The agency said it had seen evidence suggestive of this in outbreak investigations in the United States and overseas. The agency also cited high viral loads as a reason for changing guidance.

On Thursday, U.S. President Joe Biden urged local governments to pay people to get vaccinated and set new rules requiring federal workers to provide proof of vaccination or face regular testing, mask mandates and travel restrictions.

The findings may stir debate about whether masks, social distancing and other measures may again be needed even in countries with broad vaccination campaigns and where lockdown restrictions have eased.

The CDC report said that universal mask wearing is still needed to reduce transmission in addition to vaccines.

Israel recently reinstated mask-wearing requirements indoors and requires travellers to quarantine upon arrival.

"The main thing that does change (because of Delta) is that masks will still be used and that in countries where this requirement has been lifted, it will have to be re-introduced," said Carlo Federico Perno, Head of Microbiology and Immunology Diagnostics at Rome's Bambino Gesù Hospital.

The Delta variant is more transmissible than the SARS-CoV-2 ancestral strain as well as the viruses that cause MERS, SARS, Ebola, the common cold, the seasonal flu and smallpox, the report said. It said it was as transmissible as chickenpox, a highly contagious infection common in children that causes itchy rashes.

But the variant is roughly as deadly as the ancestral strain, whereas SARS, Ebola and other diseases had far higher fatality rates, the report showed.

The immediate next step for the agency is to "acknowledge the war has changed" and improve the public's understanding of breakthrough infections as well as the big reduction in the risk of severe disease for vaccinated people, the document said.

CDC is expected to publish additional data on the variant on Friday, the New York Times said.

Delta appears to be about 50% more transmissible than the three other "variants of concern", all of which are more transmissible than the original virus, spokesman WHO Tarik Jasarevic said on Friday.

"We continue to review the incoming evidence and will update our estimates going forward," he added.

U.S. CDC internal report says Delta variant as contagious as chickenpox - report
 

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 (4)
Eudon Hickey
Eudon Hickey Jul 30, 2021 10:14AM ET
Saved. See Saved Items.
This comment has already been saved in your Saved Items
Who has a light?
CHADWICK RICHINGTON
CHADWICK RICHINGTON Jul 30, 2021 8:51AM ET
Saved. See Saved Items.
This comment has already been saved in your Saved Items
99.97% survival rate who cares
Catholic Man
CatholicMan Jul 30, 2021 2:41AM ET
Saved. See Saved Items.
This comment has already been saved in your Saved Items
Cool story, bro.
Shurik Abramov
Shurik Abramov Jul 30, 2021 2:28AM ET
Saved. See Saved Items.
This comment has already been saved in your Saved Items
This means the next variant, if there is one will be worse
Catholic Man
CatholicMan Jul 30, 2021 2:28AM ET
Saved. See Saved Items.
This comment has already been saved in your Saved Items
Why?
Josh Davis
Josh Davis Jul 30, 2021 2:28AM ET
Saved. See Saved Items.
This comment has already been saved in your Saved Items
No thats false. Virus mutate out of fatality not more fatal. Its literally a virus’s only job is to replicate and infect more if they *******the host how can they remain viable? Lol jesus
 
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