Friday 9 April 2021

COVID-19: Asia Report, Omnibus Edition


This is the fifth of my “omnibus” reports on the statistics of the COVID virus. Today, I’ll look at those parts of Asia I haven’t already covered. This consists of four areas, three of them highly populated:

1.     North-East Asia – A vast swathe of continent, from Georgia to Uzbekistan.

2.     South Asia – India and the countries around it.

3.     East Asia – China and the countries around it.

4.     South-East Asia – from Bangladesh to Timor, and points in between.

The band of countries from Turkey to Pakistan I already covered under the heading of Middle East; and cases in the Asian part of Russia are included with those in the European part.

There are 28 countries to examine this time round. Here is the list:

North-East Asia

South Asia

East Asia

South-East Asia

Azerbaijan

Bhutan

China

Bangladesh

Georgia

India

Japan

Brunei

Kazakhstan

Maldives

Philippines

Cambodia

Kyrgyzstan

Nepal

South Korea

Indonesia

Mongolia

Sri Lanka

Taiwan

Laos

Tajikistan

 

 

Malaysia

Uzbekistan

 

 

Myanmar

 

 

 

Singapore

 

 

 

Thailand

 

 

 

Timor

 

 

 

Vietnam

 

Once again, the data sources are (for epidemic data) Our World in Data and (for lockdown regulations) the Blavatnik School of Government, both at Oxford University. The data I used included figures up to and including April 5th.

Country Ratings

Here are the bar charts of the United Nations HDI (Human Development Index) ratings for the four groups:




In comparison with Africa, these are getting back up towards Western levels. And here are the Freedom House ratings:




The “stans” are generally low on this measure. So is China, and several countries around it; notably, those with a history of communism. It’s also worth noting that the rating for Myanmar is overstated, being based on the situation before the recent military coup.

Cases

For this part of the world, I’ll start by showing the total cases per million spaghetti graphs:




Except for Georgia and the Maldives, all these numbers of cases per million are way lower than the European figures. But what is even more remarkable is that several countries in this area have cases per million an order of magnitude lower still – their lines just seem to bump along the bottom of the graph. To find out which these are, I’ll show the complete list of cases per million for all 28 countries:

The Maldives is an outlier, probably due to its nature as a chain of small islands. As far as the rest of the top quarter of the graph goes, countries relatively close to Europe and the Middle East seem to get more cases per million than those further away. But at the bottom, you see something quite extraordinary. The closer a country is to China, the less cases per million it seems to have!

The possibility that having Chinese ancestry may give a degree of protection against catching the virus is worth considering. It would make sense that Chinese people, having been exposed to viruses of this kind over centuries, might have evolved better defences than those not so exposed. Vietnam, Laos, Cambodia and Myanmar are all places to which many ethnic Chinese have gone over the centuries. And in more recent times, Singapore, Malaysia, Thailand and Brunei have become homes to large numbers of Chinese. 76% of the population of Singapore, 23% of Malaysians, 16% of Thais and 10% of Bruneians are ethnic Chinese. I don’t know if anyone has done studies to see whether Chinese in other countries are more resistant to catching the virus than the rest of the local population. But I did find a report that attributed British Columbia’s relative success against the virus to the habit of social distancing among its Chinese community (who form 10% of BC’s population).

Here are the daily cases per million over the course of the epidemic:




That China “bumps along the bottom” of the graph, and Taiwan hardly even leaves the bottom axis, are obvious. Thailand, Cambodia, Vietnam and Laos are harder to see; but their total cases per million so far, compared with 71 for China and 44 for Taiwan, are 420, 165, 27 and just 7 respectively.

Here are the reproduction rates:




That drop-off in Tajikistan looks a bit odd – have they really succeeded in extinguishing the virus? And Brunei’s R-rate hasn’t gone above 1 at any point in the epidemic.

But it’s noticeable that, within East Asia, China’s R-rates have been comparable with Japan, South Korea and the Philippines. And that a lot of those countries have R-rates greater than 1 at the moment, but that isn’t being reflected in large numbers of new cases, except in the Philippines.

Testing

Many of these countries haven’t been doing much testing. And that includes the most successful countries of all against the virus! Singapore is the only country with a significant Chinese population to have done European levels of testing; this may be because of its position as a world cross-roads.

Lockdowns

Here are the lockdown stringencies:




I am coming to wonder whether the lockdowns in China may have been tighter than they needed to be, given the low penetration of the virus into the population? Particularly since Taiwan has achieved an even better result with an unusually low stringency. (As has Laos, since about July). I think a more detailed look at what the most successful countries have been doing lockdown-wise – China and Taiwan, in particular – is in order.

But first, the list of average lockdown stringencies:

Again, success and low lockdown stringency seem to go together! And that includes Japan, where although there almost a million ethnic Chinese, they are only a small proportion of the population. Perhaps there is something cultural, which Japanese and Chinese share, which helps against the virus? When I worked with Japanese people, I found them a bit formal and remote. Maybe they find it natural to keep a distance from other people? And, perhaps, for the same reason as the Chinese – a long history of exposure to this kind of virus?

So, I’ll look in some more detail at China and Taiwan. What have they done right that others didn’t?

China

Here’s the, rather strange looking, epidemic profile in China:

In comparison with Western countries, and taking account of the size of the population, those case numbers, even at the peak, are peanuts. The obvious thought then is, are the Chinese lying and fudging the figures? Or, is there something else at work?

Here’s the weekly case growth, R-rate and lockdown stringency graph:

Well, that kind of up-and-down case growth does look believable, considering the very low number of cases relative to the population. But the lockdowns do look over-the-top for the number of cases. Maybe that’s because the R-rate has been above 1 for far more time than it has been below? Or, maybe that’s just communism for you? But no: Laos is communist too, and they haven’t locked down all that hard; not recently, anyway. So, let’s look at what the Chinese have done:

Date

Stringency

Measures

20200105

2.78

Public info: Urging caution (Regional)

Contact tracing: Comprehensive

20200115

8.33

Public info: Co-ordinated (Regional)

20200121

8.33

Face covering: Required in some places

20200122

26.39

Events: Mandatory cancelled (Regional)

Gatherings: Up to <=10 (Regional)

Face covering: Required when with others (Regional)

20200123

44.91

Public transport: Mandatory closed (Regional)

Stay at home: Recommended (Regional)

Travel: Mandatory restrictions (Regional)

20200125

47.69

Public info: Co-ordinated

20200126

69.91

Schools: Mandatory closed

Workplaces: Mandatory closed

20200201

77.31

Stay at home: Required, minimal exceptions (Regional)

20200210

75.46

Workplaces: Mandatory closed (Regional)

20200216

75.46

Testing: If symptoms

20200225

81.02

International: Quarantine high-risk

20200316

79.17

Schools: Mandatory closed (Regional)

20200324

79.17

Face covering: Required in some places

20200326

81.94

International: Ban some arrivals

20200328

73.61

Public transport: Open

20200331

73.61

Testing: Open

20200403

69.91

Workplaces: Some closed (Regional)

20200408

56.94

Stay at home: Recommended (Regional)

Travel: Recommended not to travel (Regional)

20200510

81.94

Workplaces: Mandatory closed (Regional)

Public transport: Mandatory closed (Regional)

Stay at home: Required, minimal exceptions (Regional)

Travel: Mandatory restrictions (Regional)

20200603

78.24

Schools: Some closed (Regional)

20200902

55.09

Workplaces: Recommended closed

Public transport: Open

Stay at home: No measures

20200904

46.76

Travel: No restrictions

20200915

81.94

Schools: Mandatory closed (Regional)

Workplaces: Mandatory closed (Regional)

Public transport: Mandatory closed (Regional)

Stay at home: Required, minimal exceptions (Regional)

Travel: Mandatory restrictions (Regional)

20200921

75.46

Workplaces: Some closed (Regional)

Gatherings: Up to 11-100 (Regional)

20200922

71.76

Schools: Some closed (Regional)

20200923

60.65

Public transport: Open

International: Quarantine high-risk

20200924

63.43

International: Ban some arrivals

20200926

54.17

Stay at home: No measures

20201010

52.31

Schools: Recommended closed

20201012

61.57

Stay at home: Required, minimal exceptions (Regional)

20201024

81.94

Schools: Mandatory closed (Regional)

Workplaces: Mandatory closed (Regional)

Gatherings: Up to <=10 (Regional)

Public transport: Mandatory closed (Regional)

Face covering: Required outside the home (Regional)

20201030

68.98

Workplaces: Some closed (Regional)

Public transport: Recommended closed (Regional)

Stay at home: Required with exceptions (Regional)

20201031

63.43

Schools: Recommended closed

20201120

76.39

Schools: Mandatory closed (Regional)

Workplaces: Mandatory closed (Regional)

Stay at home: Required, minimal exceptions (Regional)

20201124

81.94

Public transport: Mandatory closed (Regional)

20201208

78.24

Workplaces: Some closed (Regional)

20210222

67.13

Public transport: Recommended closed

Stay at home: Recommended

Travel: Recommended not to travel

Face covering: Required in some places

20210301

61.57

Schools: Recommended closed

20210315

56.94

Workplaces: Recommended closed

Events: Recommended cancelled

20210329

50

Gatherings: Up to >1000

Well, that has shown up something interesting. Apart from closing schools and workplaces for a brief while in January 2020 (and that was the Chinese New Year holiday period), and quarantine or bans for some incoming travellers, there have been no national lockdowns! China is a big place; and public health is essentially a local matter. So, you would expect a sane Chinese government not to lock down at the national level without an extremely good reason. And they haven’t. There have been no mandatory workplace closures, no mandatory stay at home, and no mandatory travel restrictions, anywhere outside the immediately affected provinces.

Contrast this, if you will, with Boris Johnson and SAGE, that have totally locked down people in the whole of England this winter for three months solid – five months for the unlucky. Boris makes Xi look like a saint. So, I think I’ll give the Chinese the benefit of the doubt; they really have controlled the virus without locking down any harder than necessary.

And something else. The Blavatnik measure over-rates regional measures versus national ones. As I’ve said before, regional measures ought to be weighted by population affected. Look at what happened in China on September 15th! Can a jump of the national stringency level from 47 to 82 really be justified by measures, none of which affect the entire population?

Taiwan

So, what can the “other China” across the water tell us?


In terms of cases per million, the Taiwanese have done even better than the Chinese. So, those bumps in the weekly case growth are nothing to worry about. Here’s what they have done lockdown-wise:

Date

Stringency

Measures

20200102

8.33

Public info: Urging caution

20200120

13.89

Public info: Co-ordinated

Testing: Restricted

20200121

13.89

Contact tracing: Comprehensive

20200123

19.44

International: Ban some arrivals

20200124

19.44

Face covering: Recommended

20200202

30.56

Schools: Mandatory closed

20200216

30.56

Testing: If symptoms

20200225

23.15

Schools: Recommended closed

20200305

28.7

Events: Recommended cancelled

20200319

31.48

International: Ban all arrivals/border closure

20200422

31.48

Face covering: Required outside the home

20200508

25.93

Events: Allowed

20200513

25.93

Face covering: Recommended

20200523

25.93

Testing: Open

20200622

23.15

International: Ban some arrivals

20200805

23.15

Face covering: Required in some places

20201201

19.44

Schools: Open

20210121

25

Events: Recommended cancelled

That looks not so bad to me, apart from the idiocy of face mask regulations. But one thing stands out like a lighthouse. The Taiwanese haven’t allowed anyone from outside into the country from anywhere risky. When things were really bad, from March to June last year, they didn’t let anyone in at all, except for returning residents.

I’m no fan of borders. But if you’ve got the bloody things, in a public health emergency you should damn well use them.

Deaths

I won’t even bother to give deaths per million graphs this time. I’ll simply content myself with the list of cumulative deaths per case through the epidemic:

The three countries I am particularly concerned about are India, Indonesia and the Philippines; in that order. They have big populations, and the virus hasn’t really made much in the way of inroads into them yet. The vaccines might save the people in those countries. Then again, they might not.

Vaccinations

Compared with Europe or some other parts of the world, there’s not much vaccination activity going on here. Here is the list of percentages fully vaccinated:

Singapore is starting to get there – as you might have expected. But no-one else is really “off the ground” yet. The percentages of people vaccinated, however, show a different story in one place, Bhutan:

Unfortunately, all the vaccinations in Bhutan have taken place on or since March 27th, so there won’t be anything to see there for a couple of weeks yet.

A note on face masks

As an objector to wearing a face mask – I find them unhealthy, uncomfortable, and demeaning – I thought I would end with the following links:

https://clinicaltrials.gov/ct2/show/NCT04337541 and https://clinicaltrials.gov/ct2/show/results/NCT04337541

The study was done in April and May last year. The results are still not available. Why not?

To sum up

Yesterday, metaphorically speaking, Europe, the Americas, the Middle East and Africa. Today, Asia. Tomorrow, Australasia and Oceania. The day after, the world!

Oh, and the day after that, I plan to look at which lockdown measures have “worked” (whatever that means) over the duration of the epidemic, and which haven’t.

 

2 comments:

Opher Goodwin said...

I am intrigued to learn more about ethnic responses - whether some ethnic groups are more susceptible. Personally, I think it is more cultural. Distancing and hygiene are different in different cultures.
I think borders play a big part.
I also think that face masks have been found to stop the spread. They do not provide much protection but they do trap aerosol droplets and stop the spread.
One common factor that needs looking at is populist leaders. Why have Trump, Johnson and Bolsonaro been so incredibly useless?

Neil said...

Yes Opher, it's possible it's at least partly cultural. That might explain why the Japanese are doing so well against the virus, even though they don't have many ethnic Chinese. Something cultural might also explain why the Nordic countries have done so relatively well against the virus. But in that case, I don't think it can be social distancing - I don't recall the Swedes and Danes I've known as being much different from other Europeans in that respect.

As to face masks, I've been looking out for an actual published study on their effectiveness when used by the general public, but haven't been able to find one - which is a bit suspicious. The nearest I got was the study I linked to in the article.

I can't speak for Trump or Bolsonaro, but I think the main reasons Johnson has been so useless are (1) he failed to close the borders when he should have, (2) he listens to SAGE far too much, not to the people or even to MPs within his party.