We have already posted our prediction for the start of the next global Covid-19 wave here, and the October 23rd date we mentioned as being the start of the next wave also seems to be close to an inflexion point for global Covid deaths too. In 2020, the global death rate started to accelerate from October 19th. The next two weeks will be crucial in determining how severe Covid-19 will be this winter.
Our forecast is for the next global wave to start on or around 23rd October 2021:
The inflexion point for an increase in global deaths was on the 19th October 2020. Will vaccines and herd immunity help reduce the size of the next winter wave?
Below is the interactive OurworldinData chart for global biweekly deaths.
You can see clearly that the first global Covid wave from October 2020 to February 2021 was larger than the second Covid wave from February to June 2021. The global cases chart shows a collapsed first peak due to limited recording over the winter holidays. Cases may not have been recorded in that period, but deaths, of course, were, giving an indication of just how large the first Covid-19 wave really was.
Below is the interactive chart for global biweekly cases, with a trough expected around 23rd October 2021. Note the collapsed peak of the first wave due to the lack of recording over the winter holidays.
A visualization of what the first global peak in Covid cases would probably have looked like were it not for the lapse in recording from Thanksgiving 2020 through New Year of 2021.
Sadly, we don’t think that the three declining global peaks we have seen so far represent a trend that will continue into this coming winter of 2021. We should be able to tell by mid-November 2021 just how severe the next global Covid winter wave will be, and we will update Coronaheadsup.com in a new post around that time.
12th October 2021: An early indication from Britain of where we are headed?
Quick reaction to today’s weekly deaths data in this thread from @ActuaryByDay. Deaths remain unusually high again this week, as illustrated here.
— COVID-19 Actuaries Response Group (@COVID19actuary) October 12, 2021