Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Latest Lancet Study Exposes Limits of Vaccines at Preventing COVID-19
USSA News ^ | 10/29/2021 | Tyler Durden

Posted on 10/29/2021 8:17:43 PM PDT by SeekAndFind

The Lancet has just released another study comparing the efficacy of COVID vaccines to the efficacy of protection provided by previous COVID infections. Their conclusion: while vaccines lower the risk of infections with the delta variant within households, those who are fully vaccinated are still vulnerable to a 'breakthrough' infection if somebody they live with gets infected.

What's more, people who have been vaccinated against COVID can be equally as infectious as the unvaccinated, the study showed.

The new study, which was published Thursday in the Lancet, the British medical journal that published some of the earliest research on COVID, is one of few to use detailed infection data from actual examples of household transmission, and it showed that - as we noted above - the viral loads of both vaccinated and unvaccinated patients infected with COVID are "broadly similar".

The study involved 621 people in the UK with mild COVID infections, identified via the UK's contact-tracing system.

The data showed that vaccination status doesn't make a whole lot of difference in the ability to pass COVID on to others.

Roughly 25% of vaccinated household members subsequently tested positive for the virus after close contact with a fellow household member with a confirmed case of COVID. That's compared with 38% of infection for people who haven't been vaccinated.

These data show that the delta variant has a "greater capability for breaching the vaccine's defenses when compared with predecessors.

"Our findings show that vaccination alone is not enough to prevent people from being infected with the Delta variant and spreading it in household settings," said Professor Ajit Lalvani of Imperial College London, the co-leader of the study.

The study's author said the lower transmission rates between vaccinated patients is just another reason to get the jab - although not a particularly compelling one.

"The ongoing transmission we are seeing between vaccinated people makes it essential for unvaccinated people to get vaccinated to protect themselves from acquiring infection and severe Covid-19, especially as more people will be spending time inside in close proximity during the winter months," he said.

The study also underlines the importance of the vulnerable to get booster shots, since it also shows that vaccine immunity wanes with time.

"We found that susceptibility to infection increased already within a few months after the second vaccine dose – so those eligible for Covid-19 booster shots should get them promptly," the professor said.

Following a summary of its findings, the Lancet wrote the "interpretation" of the study: "Vaccination reduces the risk of delta variant infection and accelerates viral clearance. Nonetheless, fully vaccinated individuals with breakthrough infections have peak viral load similar to unvaccinated cases and can efficiently transmit infection in household settings, including to fully vaccinated contacts. Host–virus interactions early in infection may shape the entire viral trajectory."

Readers can find the full study below:

s 1473309921006484


TOPICS: Health/Medicine; Science; Society
KEYWORDS: covid; infection; lancet; vaccines

1 posted on 10/29/2021 8:17:43 PM PDT by SeekAndFind
[ Post Reply | Private Reply | View Replies]

To: SeekAndFind

Who believes Lancet now?


2 posted on 10/29/2021 8:20:03 PM PDT by JoJo354 (JUST SAY NO to covid vaxx!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SeekAndFind

Last paragraph seems to say vax seems worthless


3 posted on 10/29/2021 8:25:07 PM PDT by goodnesswins (....pervert Biden & O Cabal are destroying America, as planned.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SeekAndFind

They really need to stop calling it a vaccine.


4 posted on 10/29/2021 8:25:55 PM PDT by eyedigress (Trump is my President! )
[ Post Reply | Private Reply | To 1 | View Replies]

To: goodnesswins

“Last paragraph seems to say vax seems worthless”

Not true. Taking the vaccine proves you will do as told.


5 posted on 10/29/2021 8:27:35 PM PDT by EEGator
[ Post Reply | Private Reply | To 3 | View Replies]

To: SeekAndFind
those who are fully vaccinated are still vulnerable to a 'breakthrough' infection if somebody they live with gets infected.

Not someone dining at the table next to them in a restaurant?

Not someone in the theater seat next to you?

Not someone in the beer line ahead of you at the game?

Not the parent who took your kid to soccer practice?

Not someone on the airplane you're on?

Not someone at the checkout line ahead of you?

You're only "vulnerable if somebody they live with gets infected?"

It's time for people to get back to living their lives. It's out there, it's not going away, the weakest will be hurt the most, blame the Chinese, but life for the rest of us goes on.

-PJ

6 posted on 10/29/2021 8:31:48 PM PDT by Political Junkie Too ( * LAAP = Left-wing Activist Agitprop Press (formerly known as the MSM))
[ Post Reply | Private Reply | To 1 | View Replies]

To: EEGator; goodnesswins; SeekAndFind; Jane Long; ransomnote
This is interesting:

We estimated vaccine effectiveness at preventing infection (regardless of symptoms) with delta in the household setting to be 34% (bootstrap 95% CI –15 to 60).

For the data junkies, there were 125 fully-vaccinated and 40 unvaxxed folks, with 31 and 15 COVID19 infections, respectively. That means the infection rate for the vaxxed was 24.8% and for the unvaxxed was 37.5%. Thus, by being vaxxed, you had a 34% lower rate of infection.

The 95% statistical confidence interval for that 34% efficacy value was 60% and negative 15.

7 posted on 10/29/2021 8:52:46 PM PDT by DoodleBob (Gravity's waiting period is about 9.8 m/s^2 )
[ Post Reply | Private Reply | To 5 | View Replies]

To: goodnesswins
Last paragraph seems to say vax seems worthless

"Worthless" may be about the best one can say about them. At this point, they appear to be contributing to actual harm.

In September 2020 -- at which time no one in the U.S. had been vaccinated -- there were 19,138 deaths involving COVID. Last month (i.e., September 2021) -- at which time millions of people in the U.S. had been vaccinated -- there were 58,996 COVID deaths. That is an increase of 208%, comparing September 2021 to September the year previously.

This trend towards increasing numbers of COVID deaths started this past August 2021. Data for the month of October 2021, while not yet complete, indicate that this trend is continuing.

8 posted on 10/29/2021 8:56:04 PM PDT by DSH
[ Post Reply | Private Reply | To 3 | View Replies]

To: DSH

Well...that’s alarming. Haven’t heard that.


9 posted on 10/29/2021 9:22:11 PM PDT by goodnesswins (....pervert Biden & O Cabal are destroying America, as planned.)
[ Post Reply | Private Reply | To 8 | View Replies]

To: Political Junkie Too

Absolutely!
.
Get busy Living
Or
Get Busy Dying!


10 posted on 10/29/2021 9:38:35 PM PDT by Big Red Badger (Make His Paths Straight!)
[ Post Reply | Private Reply | To 6 | View Replies]

To: goodnesswins

Why is it not safe to admit there are some things we cannot do? If we cannot vaccinate our way out of this just admit such.


11 posted on 10/29/2021 9:43:49 PM PDT by packagingguy
[ Post Reply | Private Reply | To 3 | View Replies]

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson