• Login
  • Register
The Daily Sceptic
No Result
View All Result
  • Articles
  • About
  • Archive
    • ARCHIVE
    • NEWS ROUND-UPS
  • Podcasts
  • Newsletter
  • Premium
  • Donate
  • Log In
The Daily Sceptic
No Result
View All Result

Another Study Finds That Natural Immunity Protects Better Against Infection Than the Pfizer Vaccine

by Noah Carl
10 December 2021 11:18 AM

At the end of August, a study was published showing that natural immunity provides much better protection against infection than the Pfizer vaccine. It was described by UCL’s Francois Balloux as “a bit of a bombshell”.

Subsequent studies have compared natural and vaccine-induced immunity at the cellular level. One found that infection-induced antibodies “exhibited superior stability and cross-variant neutralisation breadth” than vaccine-induced antibodies, suggesting that people who’d already been infected had better immunity against the then-novel Delta variant.

However, as I noted in my write-up of the “bombshell” study, its findings still needed to be replicated. After all, certain datasets or methods of analysis can sometimes yield quirky results, which don’t survive independent empirical tests.

Encouragingly, the findings now have been replicated – by another team of Israeli researchers, using a different dataset.

In the latest study, Yair Goldberg and colleagues tracked all the individuals in their dataset (of people in Israel) who had tested positive or received two doses of the Pfizer vaccine before 1st July, 2021. They then compared the number of infections in previously infected versus vaccinated individuals from August to September of 2021.

The researchers also examined the number of infections among those with so-called ‘hybrid immunity’ – i.e., previously infected individuals who got vaccinated.  

For each of the three groups, they counted the number of infections and the number of days ‘at risk’ (i.e., the total number of people multiplied by the number of days on which they were ‘at risk’ of becoming infected). Adjustments were made for age, sex, ethnicity, calendar week and a measure of risk exposure.

Results are shown in the chart below. Each bar corresponds to the infection rate per 100,000 ‘risk days’. The reason the researchers used ‘risk days’, rather than just ‘people’, is that the composition of each group changed over time. For example, some previously infected people chose to get vaccinated.

Notice that the labels for the horizontal bars are not the same for each group. Since we want to compare apples with apples, look at the bars labelled “Recovered 6–8 months” and “Vaccinated 6–8 months”.

This comparison shows that, 6–8 months after the corresponding event, infection rates were more than six times higher among vaccinated individuals – 89 per 100,000 versus only 14 per 100,000 among previously infected individuals.

The chart also shows that infection rates were lower still among those with hybrid immunity, which is consistent with what the earlier study found. However, the difference between the hybrid group and the recovered group was relatively small. For example, infection rates at 6–8 months were only 20% higher in the recovered group.

Goldberg and colleagues’ study confirms that natural immunity does wane, though much more slowly than vaccine-induced immunity. Anyone claiming the contrary now has to contend with not one, but two, high quality studies.  

Tags: IsraelNatural immunityVaccines

Donate

We depend on your donations to keep this site going. Please give what you can.

Donate Today

Comment on this Article

You’ll need to set up an account to comment if you don’t already have one. We ask for a minimum donation of £5 if you'd like to make a comment or post in our Forums.

Sign Up
Previous Post

English Football League Calls for Segregating Players Based on Vaccination Status

Next Post

Fines for Attending House Gatherings Were Dished Out on Day of Downing Street Christmas Party

Subscribe
Login
Notify of
Please log in to comment

To join in with the discussion please make a donation to The Daily Sceptic.

Profanity and abuse will be removed and may lead to a permanent ban.

126 Comments
Oldest
Newest Most Voted
Inline Feedbacks
View all comments

NEWSLETTER

View today’s newsletter

To receive our latest news in the form of a daily email, enter your details here:

DONATE

PODCAST

Episode 36 of the Sceptic: Karl Williams on Starmer’s Phoney Immigration Crackdown, Dan Hitchens on the Assisted Suicide Bill and Tom Jones on Reform’s Local Council Challenge

by Richard Eldred
16 May 2025
0

LISTED ARTICLES

  • Most Read
  • Most Commented
  • Editor’s Picks

Chinese ‘Kill Switches’ Found in US Solar Farms

15 May 2025
by Will Jones

News Round-Up

16 May 2025
by Richard Eldred

Spy Agency Report on the Alleged “Extremism” of AfD Turns Out to Be So Stupid That it Destroys all Momentum for Banning the Party

16 May 2025
by Eugyppius

The Folly of Solar – a Dot on the Horizon Versus a Blight on the Land

16 May 2025
by Ben Pile

Civil Servants Threaten to Strike Over Trans Ban in Women’s Lavatories

16 May 2025
by Will Jones

The Folly of Solar – a Dot on the Horizon Versus a Blight on the Land

29

Civil Servants Threaten to Strike Over Trans Ban in Women’s Lavatories

25

Spy Agency Report on the Alleged “Extremism” of AfD Turns Out to Be So Stupid That it Destroys all Momentum for Banning the Party

19

News Round-Up

18

Chris Packham is the New St Francis of Assisi

39

Trump’s Lesson in Remedial Education

16 May 2025
by Dr James Allan

Spy Agency Report on the Alleged “Extremism” of AfD Turns Out to Be So Stupid That it Destroys all Momentum for Banning the Party

16 May 2025
by Eugyppius

The Folly of Solar – a Dot on the Horizon Versus a Blight on the Land

16 May 2025
by Ben Pile

Renaud Camus on the Destruction of Western Education

15 May 2025
by Dr Nicholas Tate

‘Why Can’t We Talk About This?’

15 May 2025
by Richard Eldred

POSTS BY DATE

December 2021
M T W T F S S
 12345
6789101112
13141516171819
20212223242526
2728293031  
« Nov   Jan »

SOCIAL LINKS

Free Speech Union
  • Home
  • About us
  • Donate
  • Privacy Policy

Facebook

  • X

Instagram

RSS

Subscribe to our newsletter

© Skeptics Ltd.

Welcome Back!

Login to your account below

Forgotten Password? Sign Up

Create New Account!

Fill the forms below to register

All fields are required. Log In

Retrieve your password

Please enter your username or email address to reset your password.

Log In
No Result
View All Result
  • Articles
  • About
  • Archive
    • ARCHIVE
    • NEWS ROUND-UPS
  • Podcasts
  • Newsletter
  • Premium
  • Donate
  • Log In

© Skeptics Ltd.

wpDiscuz
You are going to send email to

Move Comment