I am writing this simply to detail some data for people to consider. From the start, I have avoided comparing COVID-19 to the flu and keep my opinion on that subject. This is different and worthy of our worry and comparisons with flu are concerning because the mortality rates seem to be different. That said, I decided to do some research when Perry said COVID-19 is killing more than any flu. I fully agree with this at a regional level (Italy) but I think the data shows differently at a global level.
So, at the time of writing
COVID-19 has killed 32,144 people around the world. Let's base this off the outbreak starting on Jan.1. I know it seems the Chinese were covering it up in December and maybe earlier, but I think the start of the year is a good place to start. Not least because then the outbreak was still limited to China. Since then, 89 days have passed meaning the average daily death rate for COVID-19 is 361 per day. If you want to increase the timeframe through December you can, which would obviously mean the average daily death rate of coronavirus dropping lower. Read "some things to consider" below to see why I don't think extending into December is a good measurment.
Now, let's look at flu in the United States alone. The CDC
defines the flu season as lasting between October to as late as May. However, historical data shows the true season (peak infections) happening during the months December, January, Feburary, and March:
With that in mind, t
he 2019/2020 seasonal flu season in the United States saw an estimated 35 million flu cases. Estimated is important because CDC uses Case Fatality Rate (CFR) to extrapolate known hard data to reach a conclusion on potential infections. I won't go into CFR here, but you should look it up. It's worth noting the CDC (and most other similar organizations) use CFR to estimate the mortality rate of COVID-19.
Moving on. From the 35 million flu cases, the CDC says between October and March, there have been between 24,000 and 61,000 deaths from seasonal flu. Again, the cases would have peaked from December to March. So, if we take the low number and high numbers, what are the average daily deaths caused by flu?
Low average (24,000) from December to date (120 days): An average of 200 daily deaths.
Not far from the daily death rate of COVID-19 despite having a month longer.
Low average (24,000) from October to date (181 days): An average of 135 deaths per day.
High average (61,000) from December to date (120 days): An average of 508 daily deaths.
Significantly higher than the current daily death rate for COVID-19. Remember, this information is only for the United States
High average (61,000) from October to date (181 days): Average of 337 daily fatalities.
Mean (42,500) from December to date (120 days): 354 deaths per day.
Mean (42,500) from October to date (181 days): 234 deaths per day.
If we extrapolate data from the US flu season worldwide, it is obvious during the last flu season, more people died from flu on a daily basis than are dying from COVID-19.
Some things to consider
The data for COVID-19 includes nearly 2 months (Jan and Feb) when the virus was relatively limited to a few regions and so killing less people each day. That's why including December in any measurments of the outbreak is pointless in my opinion. In other words, perhaps the fair measurement would be to see the average daily death rate 89 days from March 1 (so, sometime in early June). If the world remains in thr toilet by then, I will return to check this out.
There is a defined flu season and it is unclear is COVID-19 will assume a similar seasonal pattern. Its spread to countries out of season suggests not, but we'll see. Either way, this means the virus could spread through the year with no end in sight and eventally surpass the daily death rate for flu by a significant margin. Again, we'll see.
It is important to remember flu cases and deaths in October and November are extremely low compared to the peak months. I included the data above out of transperancy, but don't think including October and November provides a fair result.
I want to repeat that Italy shows that COVID-19 can do far more damage than flu at a regional level. This is the main reason why I don't subscribe to the "it's the same as flu" idea. If coronavirus was allowed to run rampant, we would have 100 Italy's around the world. We are already heading that way despite numerous efforts. In other words, I agree with the isolation idea (at least in principle but not in practice) as the late remedy it is
If you dispute the methodology of Case Fatality Rate (CFR), that's fair enough. It is notably unreliable at the start of a viral outbreak. However, if you dismiss CFR when applied to flu cases, you must also dismiss it when it's applied to COVID-19 and its mortality rate.
I like to use data and facts where possible. However, while the figures show a compelling argument to say "this is no worse than" flu, there are things worth putting into perspective. Firstly, we are clearly in a fluid situation and COVID-19 is certainly not finished yet. I think at the moment we are looking at how many people it could infect. There is historical evidence to say it could infect as many as seasonal flu (between 30 million and 55 million in the United States this past season) or there is historical evidence to suggest it could outbreak and infect a third of the population (Spanish Flu).