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Good sign: South Korea may be getting control of Coronavirus — is this the middle scenario future?

Watching South Korea — it appears to have stopped the exponential spread of Coronavirus

Heartening. At its peaks last Saturday and Tuesday, South Korea acquired 800 new infections per day. Since then, whatever it is doing, South Korea has managed to keep the new daily cases between 300-800. That may not sound like much, but in exponential terms it could have been a lot worse. Is this the future for us in the West? Perhaps with aggressive action, and local or statewide lockdowns, wealthy western nations may get outbreaks under control. Will we spend the next year with periodic major lockdowns as outbreaks occur, but manage to keep the virus from en masse spread without hospitals being overwhelmed? But can poor countries achieve this? If not, we will have to close flights to stop repeated debilitating and deadly outbreaks, while doing our best to help them. The world will become divided into nations which have this controlled, and those who don’t. This is still the pandemonium I’ve been talking about for six weeks; we could have avoided it, but it’s better than other scenarios. It’s a middle-run scenario.

We are fortunate that this is not as airborne and infectious as measles, which might have made even this impossible. (Note that Coronaviurs is perhaps 500 or more times more deadly than measles, whose fatality rate is 1 per 100,000. Note the mass panic those outbreaks cause.) Keep the pantry stocked. Reduce your risk. Travel less. Avoid crowds. Wash hands. etc.

The death toll so far in South Korea is 48. Theoretically, even if they have passed the peak of new cases, the death toll will still double in coming weeks. In this one outbreak, 100 people may die, 10,000 plus people will have suffered a potentially debilitating disease, and tens of thousands will have been inconvenienced by quarantine and travel bans. There is also the financial cost of closing workplaces. Note also that there are major privacy issues with the South Korean approach to mapping and tracking victims and their movements by their phones.

When will the Australian Government stop telling people to keep going about their business as if nothing is happening? Presumably when there is an outbreak and it’s two weeks too late?

South Korea, new cases Coronavirus, Graph.

South Korea, new cases Coronavirus

South Korean cases of Coronavirus.

South Korean cases of Coronavirus.

 

Extrapolating further than I should, if this is the peak and the decline starts soon and there are no new outbreaks, then in a month or so it may be safe to open flights again to South Korea. (Though if our outbreaks are not controlled, they won’t want our planes.)

The daily growth rate is shrinking — yesterday increasing by 7%. This is ideally a bell curve type rise and fall, and the huge spike on the 20th Feb is probably the discovery of all the cases that existed but weren’t detected in the days before. Is that what we are about to see in the US, which hasn’t been doing nearly enough testing?

Growth in Coronavirus cases in South Korea, Graph.

Growth in Coronavirus cases in South Korea

Two weeks ago South Korea had only 200 cases, now it has 7,000. So the death toll of 48 (with a two week lag) is not a number we want to calculate, because it’s surely a wild overestimate. South Korea had more undetected cases then. Guess. Guess. Guess. O for data.

Deaths still rising following that “new cases” curve with a two (or three week) delay.

It will be at least another week before it levels off.

Total Cases

….

The first few cases in South Korea were very early (11 cases on Jan 31). It was doing well, but lost control.

Taiwan is worth watching:

How Taiwan managed to avoid a coronavirus outbreak

Taiwan is 81 miles off Mainland China. It is a highly urbanized state of 24 million people with an extremely high population density. It is also one of the first places where the new coronavirus epidemic manifested itself. All things considered, Taiwan was expected to have the highest number of cases outside China. Yet Taiwan successfully managed to avoid an uncontrolled outbreak and only has 44 confirmed cases.

Less than one year after the SARS outbreak, a National Health Command Center (NHCC) was established. The NHCC is meant to serve as a disaster management center command point…

Technology is a key ally when you’re fighting an outbreak, Taiwan realized. So they leveraged the national health insurance database to create a smart system to warn citizens and keep an eye on the situation.

The database was integrated with the customs information to generate a pool of big data. This data generated real-time alerts based on people’s travel patterns. It used QR code scanning and online reporting of travel history and documented health symptoms to classify passengers’ infectious risks. Then, Taiwanese authorities acted based on what the data suggested — and took some pretty draconic precaution measures.

People with the lowest risk were issued fast travel clearance, but people with higher risk were likely to be quarantined at home, whether they liked it or not.

Obviously, there is a lot of big government involvement. Again, we see hi tech tracking. Is that necessary? How much freedom will we have to trade in order to reduce the toll and curb the rising fear? Can we control this just with old fashioned quarantines and public information updates?

 

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Coronavirus Background: ☀ The Demographics: the young are spared, but the severity increases with age, and slightly more for men than women. ☀ The Ro is 2 – 3 and exponential curves are steep. See the importance of an ICU unit in treating ARDS (the severe respiratory disorder). ☀ Illness progression: Dry coughs and Fevers, Aches. In 15% of people, by day 5 breathing trouble starts. In 3% (?) by day 8 they may need an ICU (intensive care unit). ☀ The good case of Singapore but the ominous calculations of how fast the ICU beds may run out. ☀ The story of how American Samoa avoided Flu Deaths with quarantine in 1918. ☀

Economics: ☀ The huge impact on the Chinese economy, the awful case of Iran.☀

Beware UN advice:Ethiopian WHO chief was part of China’s debt trap diplomacy ☀

Stats and Data:  ☀ John Hopkins Live Map   ☀  Worldometer

 

 

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