• 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

Should We Be Surprised That Case Numbers Have Been Falling?

by Noah Carl
6 August 2021 8:50 AM

“Scientists are scratching their heads over the precipitous decline in daily COVID-19 infections”, says a recent article in the journal Nature. “A sharp fall in the number of people testing positive has surprised scientists”, says a piece in the FT. According to the epidemiologist John Edmunds, “Nobody really knows what’s going on.”

Should scientists really be surprised by the fall in case numbers? Yes, some remaining restrictions were lifted on July 19th – the U.K.’s supposed ‘Freedom Day’. But cases have fallen in the absence of restrictions many times before. It’s therefore hardly surprising they would do so again.

To identify previous examples where infections fell in the absence of restrictions, I utilised the Oxford Blavatnik School’s COVID-19 Government Response Tracker. Specifically, I looked for examples where cases fell from a peak at a time when there were no mandatory business closures in place, and there was no mandatory stay-at-home order.

I was able to identify nine examples. (And note: one’s ability to identify examples is limited by the fact that almost all countries have had either mandatory business closures or a mandatory stay-at-home order in place during each successive wave of the virus.)

The nine examples are as follows: Sweden in the spring of 2020; Japan in the spring, the summer and the winter of 2020; North Dakota in the winter of 2020; South Dakota in the winter of 2020; Wyoming in the winter of 2020; Utah in the winter of 2020; and Iowa in the winter of 2020.

In all nine cases, infections fell in the complete absence of either mandatory business closures or a mandatory stay-at-home order. (Though in some of the cases, there were restrictions on large gatherings, or other less intrusive measures in place.)

It should be noted that all these locations other than Japan have relatively low population densities – which presumably equates to lower transmission, all else being equal. (And Japan’s “success” in dealing with the virus may be due to some cultural or biological factor that is common to every country in South East Asia.) Nonetheless, differences in population density are of degree not of kind.

So what explains the declines – did people just change their behaviour voluntarily? Not necessarily, as I’ve noted before. In South Dakota, cases began falling rapidly in mid November, despite almost no government restrictions and little change in people’s overall mobility. How could this happen?

One possible explanation is super-spreaders. We know there is substantial variation in transmissibility across individuals. Most people don’t transmit the virus to anyone; but a few people spread it to many others. Perhaps cases start declining once enough of these super-spreaders have been infected.

Whatever the true explanation, lockdowns are not necessary for infections to start falling (even if they may cause this to happen slightly earlier or slightly faster than otherwise). Why, then, are the scientists so puzzled?

One reason, as Philippe Lemoine noted in our recent interview, is that some epidemiological models simply assume that only lockdowns can have a large effect on transmission. Not particularly scientific, you might say, but that’s modelling for you.

The fact that infections have been falling in the U.K. is actually even less surprising than I’ve suggested so far. That’s because over 93% of Britons now have Covid antibodies – acquired from either vaccines or natural infection (whereas in the examples listed above, the numbers were far lower).

In summary, a decline in case numbers is only surprising if you’re reasoning from a flawed model.

Tags: CasesSouth DakotaSweden

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

What the Modellers Still Don’t Understand About Herd Immunity

Next Post

A Letter From Iceland

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.

77 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

Chinese ‘Kill Switches’ Found in US Solar Farms

27

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

August 2021
M T W T F S S
 1
2345678
9101112131415
16171819202122
23242526272829
3031  
« Jul   Sep »

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
Perfecty
Do you wish to receive notifications of new articles?
Notifications preferences