12/3/21: COVID19 Update: Worldwide Data

Updating charts for weekly worldwide numbers covering the Covid19 pandemic, here is the data through Thursday this week:

• In terms of case counts: there is some ambiguity in timing the waves of the pandemic, driven by the dynamics of the new cases and, to a lesser extent, deaths.
• Globally, there is no doubt, however, that we have exited Wave 3 that started around Week 34 of 2020, peaked in Week 1 of 2021, and, it appears to have bottomed out in Week 7 of 2021.
• The latest level of new infections remains well above Waves 1 and 2 peaks. 
• More ominously, since Week 8 of 2021, we are seeing a potential re-emergence of a new wave, Wave 4.

• Weekly death counts have also peaked in Week 3 of 2021, marking the end of Wave 3. 
• However, the latest death counts are still well above peaks of Waves 1 and 2, and as is the case with new cases, last two weeks have witnessed a new uplift in the deaths counts, potentially marking the beginning of a new wave.

• Recent decreases in mortality rate are most likely attributable to three key drivers: (1) earlier detection of cases due to improved testing; (2) younger demographics of those with confirmed infections; and (3) improved treatments in the earlier stages of the disease.
• The decrease in mortality appears to have stabilized and slightly reversed in the first 5 weeks of 2021.

Combined evidence suggests moderation in the global pandemic has been ongoing for some time now, however, new cases are rising once again across most major regions:

The good news is, we are out of the Wave 3 of the pandemic. The bad news is, even with significant in-roads in terms of vaccinations, we are still seeing an uptick in new cases in the last two weeks.