- Jul 28, 2019
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I did a little survey for my self how is the corona-virus dangerous. So lets look at raw World Health Organization data and make your own opinion what is going on.
Rate of spreading before government take restrictions:
If the spreading rate will continue we can expect and predict these numbers:
Lets look at quarantine effect:
China:
To sum up, very hard quarantine (industry shut down) in China:
Now compare countries:
My conclusions:
I would be glad if somebody prove my calculations are wrong because these numbers are scary.
I hope this helps to avoid panic by taking it serious and not under estimating what is coming.
Rate of spreading before government take restrictions:
- - China 21.1.2020 .... 278 infected (WHO Situation Report 1)
- - China 28.1.2020 ... 4537 infected (WHO Situation Report 8) ... since then very hard quarantine started
- - Spread rate in China was 16x per week.
- - Italy 18.2.2020 .......... 3 infected (WHO Situation Report 29)
- - Italy 25.2.2020 ...... 229 infected (WHO Situation Report 36)
- - Italy 3.3.2020 ...... 2036 infected (WHO Situation Report 43)
- - Italy 10.3.2020 .... 9172 infected (WHO Situation Report 50)... since then quarantine started
- - Spread rate in Italy is 9.8x per week.
- - USA 3.3.2020 ............ 63 infected (WHO Situation Report 43)
- - USA 10.3.2020 ........ 472 infected (WHO Situation Report 50)
- - Spread rate in Italy is 7.5x per week.
- - Germany 3.3.2020 ....... 157 infected (WHO Situation Report 43)
- - Germany 10.3.2020 ... 1139 infected (WHO Situation Report 50)
- - Spread rate in Italy is 7.3x per week.
- - Spain 3.3.2020 ............ 114 infected (WHO Situation Report 43)
- - Spain 10.3.2020 ........ 1024 infected (WHO Situation Report 50)
- - Spread rate in Italy is 9.0x per week.
If the spreading rate will continue we can expect and predict these numbers:
- - USA 17.3.2020 prediction .............. 472 x 7.5 = 3536 infected (two days before US had over 1678 infected) .... looks it will match
- - Germany 17.3.2020 prediction .... 1139 x 7.3 = 8263 infected (two days before GER had over 3795 infected) .... looks rate will slow down to 5x
- - Spain 17.3.2020 prediction .......... 1024 x 9.0 = 9198 infected (two days before Spain had over 3795 infected) .... looks rate will slow down to 7x (after quarantine)
Lets look at quarantine effect:
China:
- - 28.1.2020 .... quarantine started ........ 4537 infected (+4259 per week) ....... 3.2 infected per million citizens (3.0 per week per million increase)
- - 18.2.2020 .... infection speed peak ... 72528 infected (+29820 per week) ... 50.8 infected per million citizens (20.88 per week per million increase)
- - 10.3.2020 .... quarantine won .......... 80924 infected (+620 per week) ........ 56.7 infected per million citizens (0.43 per week per million increase)
To sum up, very hard quarantine (industry shut down) in China:
- - took 6 weeks to start have a effect
- - inertia of infection is huge: 80924 / 4537 = 17.8x more infected than at quarantine beginning (as a result of 14 day virus incubation time)
Now compare countries:
- - China ........... 3.2 infected per million citizens (start of hard quarantine) .... real 81 048 infected .... 3204 deaths (4% death rate)
- - Italy ......... 152.1 infected per million citizens (start of hard quarantine) .... prediction 9172 x 17.8 = 163 000 infected + 4% death rate = 6500 deaths
- - USA ............. 5.1 infected per million citizens (no quarantine started yet) .... prediction 3536 x 17.8 = 62 000 infected + 4% death rate = 2500 deaths
- - Germany .... 45.7 infected per million citizens (no quarantine started yet) .... prediction 8263 x 17.8 = 147 000 infected + 4% death rate = 5800 deaths
- - Spain ........ 122.4 infected per million citizens (quarantine started) .............. prediction 8263 x 17.8 = 163 000 infected + 4% death rate = 6500 deaths
My conclusions:
- - Delay in reaction for one week results in 7 to 10 bigger numbers due to super high corona-virus spread rate.
- - Approximately 5-10% of infected needs lung ventilators to survive (worst case scenario is when hospitals are full then 10% of infected might die).
- - If actual number of infected is equal to number of lung ventilators available in hospitals then this country is on the edge of catastrophe. Death rate might jump higher (probably from 2.5% to 7.5%) due to after quarantine inertia 17x multiplied by avg number people needs ventilation 7.5% = 1.3 well it's little too late). Such a country needs hard quarantine ASAP.
- Delay of one week results in 7 - 10x more deaths.
- Delay of two weeks results in 50-100x more deaths. Fast reaction is crucial.
- European countries reacted way slower than China (by comparing rate infected per million) and will suffer from much higher economy crisis later on.
- USA is already reacting slower to start quarantine (China had 3.2 per million, USA 5.1 now) which will result in economy impact somewhere between Chinese and European.
I would be glad if somebody prove my calculations are wrong because these numbers are scary.
I hope this helps to avoid panic by taking it serious and not under estimating what is coming.
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