Econo Yatra: Outbreak in Italy

Wednesday, December 23, 2020

Coronavirus Pandemic – The Second Wave in the UK has been Deadlier

Even before the emergence of the UK's variant strain, the massive surge in cases and deaths from the second wave was tormenting the country.

Now, the faster and deadlier pace of transmission of the new strain has forced parts of the country back into lockdown. Of course, if the current vaccines from Pfizer and Moderna are effective against the new strain, it would be welcome news for the UK and other countries as the public health experts suspect that the new strain has already been incubating elsewhere.

After an extended remission in the summer, a renewed surge hit the UK in the fall. Still, it promptly tapered in late November, allowing public health professionals to breathe a sigh of relief. Unfortunately, it was extremely short-lived. The above graph shows how vicious the December resurgence has been. The daily cases averaged a mere 4K in September, rocketing to 18K in October, and 23K thus far in December. The 7-day moving average trendline confirms the massive surge.

After the initial breakout was brought under control in early summer, the UK's daily death toll tapered to single digits, only to return fiercely in the fall, and steadily rising ever since. To put the horror of the daily death toll, let's look at the monthly averages: 21 in September, rising to 142 in October, tripling to 396 in November, and escalating further to 461 thus far in December. The most recent trend has been more horrific, as the daily tolls have consistently exceeded the 500-mark. Today (12/23), the UK registered a heart-breaking toll of 744.

Since Italy has also been hard-hit by the second wave, it offers an excellent comparative platform. Obviously, due to the very similar outbreaks, the data points demonstrate collinearity, resulting in high r-squared values. However, the above trendlines also emphasize how the UK's cases and deaths have lately been eclipsing Italy's. Needless to say, if the new strain impacts en masse, the slope will exponentiate.

(Click on the image to enlarge)

The UK is now third on the European chart with over 2M cases and 69K deaths. Though its positivity rate has remained low, its death rate has been ticking up.

To prevent another Wuhan, it should temporarily close down all of its international passenger airports.

Stay safe!

Data Sources:

https://www.worldometers.info/coronavirus/

https://en.wikipedia.org/wiki/COVID-19_pandemic_in_the_United_Kingdom

https://en.wikipedia.org/wiki/COVID-19_pandemic_in_Italy

-Sid Som

homequant@gmail.com

Wednesday, November 18, 2020

Coronavirus Pandemic – Italy faces a more Horrific Second Wave

The on-going second wave of the pandemic in Italy has been more horrific than the initial one, requiring renewed lockdowns in the hardest-hit areas, especially tourist hot spots. Unfortunately, the rising death tolls have forced the extended death curve to form into a classic bi-modal one.

(Click on the image to enlarge)

The above graph depicting the daily cases' full-spectrum tells the story the country has been facing. Here is how the second wave compares with the initial one. At the peak of the initial surge in March and April, the daily cases averaged 3,470 and 3,322, respectively, tapering exponentially to 888 and 263 in the following two months. As the second wave began in September with a daily average of 1,522, it promptly escalated to 11,760 in October. It rocketed to 32,940 in November, which is a whopping 9.5 times higher than the initial peak.

Despite being in a significantly better treatment environment now, the renewed death curve is fast becoming comparable to the initial one. For instance, during the initial wave in March and April, the daily death tolls averaged 413 and 518, respectively. Though the November average has jumped to 478, it has been escalating daily, with the toll jumping to 753 today and 731 yesterday.

The regression between the daily cases and daily deaths during the second wave portrays the rising horror. The trendline has become exponential after surging past the intersection point of 25,000 cases and 200 deaths. Therefore, the linear trendline's r-squared value (not shown) is much lower than the r-squared value of the exponential trendline indicated here. As the scatter reveals, the daily deaths have started to further exponentiate after exceeding the 32,500/400 inflection point.

On 3-31-2020, Itlay was number two worldwide, with 106K cases and 4K deaths, dropping to number six at the end of May with 231K cases and 33K deaths. The extended remission between the surges helped Italy move down to the number ten position (as shown above), although the recent explosion has spiked the caseload up to a massive 1.27M and deaths to 47K.

The fact that the entire winter is still ahead and the mass distribution of vaccines is at least three months away makes the scenario all the more problematic for Italy, if not mostly grim.