Just because there is no exact
quantitative answer it doesn't mean we can't apply common sense with
qualitative reasoning. Have hospitals ever run out of ventilators across the globe before due to a single disease? You almost don't even need to ask any other question.
And there is enough quantitative data out there anyways to suggest that COVID-19 is deadlier than the average respiratory virus.
As for the last question, the short answer is yes, it is.
The long answer is here:
What is the prevalence of viral pneumonia?
COVID-19 kills by causing severe pneumonia. Historically, most pneumonia cases are caused by bacteria. A smaller percentage is caused by viruses. Flu viruses cause more than 50% of viral pneumonia cases. Coronavirus causes up to 14% of pneumonia cases.
What's happening with COVID-19? You're getting a spike in pneumonia cases which seems to be greater than the 14% historically quoted. How do we know this? Because that 14% does not cause entire hospital wings to be taken up with associated cases, nor does it cause entire nations to run out of ventilators. So in terms of spread and ability to cause severe disease, we know it's worse than the typical coronavirus.
What else is happening with COVID-19? You're getting a mortality rate of anywhere between 1% to 4%, depending on the country. Mortality rates for the flu range from 0.1 to 0.3% I think. Even if you apply some variance due to the fact that flu is vague and probably underreported, that's a factor of 10 difference. Meaning if they estimated 30,000 deaths in the US due to the flu last year, for the variance to approach COVID-19 numbers, the actual numbers would have to be 300,000. Did 300,000 people die in the US from the flu last year? I would find that unlikely.
Which means even in the best case scenario, you have a virus that:
- Seems to be spread as easily (or moreso) than the average coronavirus or flu
- Seems to more easily cause pneumonia in infected patients than the average coronavirus
- Seems to be more deadly in patients who get viral-associated pneumonia than the average coronavirus or flu