Based on emails I have sent to my own family over the last couple of weeks:
Interesting plots (look at 'rest of world ex. China'
on: **LINK** . Click button below graph to change y axis to log scale (but note the last 3 points on the graph are extrapolated figures for next 3 days)
Also, more noddy graph of same data on:
**LINK**
So over most of February, the log graph is a remarkably straight line showing 10 fold increase over any 3 weeks.. Since around 20 February it has increased to a factor of 10 over 12 days.
So allowing maybe 10-fold increase in cases every 2 weeks, if this continues, most of global population could have been exposed to the virus in around 12 weeks::infected then 1 miillion times more numerous than now, nobody left to infect!. I presume this is where the 12 week figure recently quoted by health secretary Matt Hancock comes from.
Expected mortality at minimum estimate of 1% for near 8 billion population gives around 80 million deaths, near double the 1918 flu pandemic. Note typical recent mortality at nearer 2% is much greater than current general flu of around 0.1%, and is also greatly dependant on age But data is still at very preliminary stage.
Notable age dependence of fatality rate, **LINK** , brief summary extract (ages relevant to various generations of my own family):
- 0-9 years: no fatalities yet recorded
- 30-39: 0.2% fatality
- 60-69: 3.6%
- 80+: 14.8%
Hope it does not continue like this, but I would have to have a good reason to believe so. Can the spread be contained? One hears platitudes on the lines of 'it will all die down in the spring, when we open our windows and get out more'.
I was wondering about sending a message about this to my family back in January based on the Chinese data. The prognosis appeared clearly much worse then with a mortality rate of 4%.and projected infection saturation in July, so not so bad now!
So:
- Scenario 1: the infection cannot be contained, leading to global infection and the global death toll of twice that of the 1918 influenza pandemic, when up to 50 million died.
- Scenario 2: the infection is contained through various measures including self isolation, sanitising measures (personal and public), availability of immunisation vaccine, etc. Hoping that this is is how it goes.
Anyway, I am preparing for the worst, but hoping for the best. Good luck to all!
Martin