Ncov-19 has an infection rate of around 2 to 3, twice that of regular flu. That's 100% higher. The death rate is uncertain at this stage but appears to be between 1 and 3% or 1 to 2 thousand percent higher.
Where did you pull those number from?
https://www.livescience.com/new-coronavirus-compare-with-flu.htmlVirus transmission
The measure scientists use to determine how easily a virus spreads is known as the "basic reproduction number," or R0 (pronounced R-nought). This is an estimate of the average number of people who catch the virus from a single infected person, Live science previously reported. The flu has an R0 value of about 1.3, according to The New York Times.
Researchers are still working to determine the R0 for COVID-19. Preliminary studies have estimated an R0 value for the new coronavirus to be between 2 and 3, according to the JAMA review study published Feb. 28. This means each infected person has spread the virus to an average of 2 to 3 people.
It's important to note that R0 is not necessarily a constant number. Estimates can vary by location, depending on such factors as how often people come into contact with each other and the efforts taken to reduce viral spread, Live Science
Also:
https://academic.oup.com/jtm/advance-article/doi/10.1093/jtm/taaa021/5735319Our review found the average R0 to be 3.28 and median to be 2.79, which exceed WHO estimates from 1.4 to 2.5. The studies using stochastic and statistical methods for deriving R0 provide estimates that are reasonably comparable. However, the studies using mathematical methods produce estimates that are, on average, higher. Some of the mathematically derived estimates fall within the range produced the statistical and stochastic estimates. It is important to further assess the reason for the higher R0 values estimated by some the mathematical studies. For example, modelling assumptions may have played a role. In more recent studies, R0 seems to have stabilized at around 2–3. R0 estimations produced at later stages can be expected to be more reliable, as they build upon more case data and include the effect of awareness and intervention. It is worthy to note that the WHO point estimates are consistently below all published estimates, although the higher end of the WHO range includes the lower end of the estimates reviewed here.
As long as there is no reliable test, and the majority of infected only show mild cold/flu-like symptoms they are likely to weather at home without medical intervention, the numbers will be overestimates.
A bit arrogant don't you think? You don't just suppose the professionals and experts in the field and within the WHO might not be aware of that? Of course I don't know if you are one such expert with in depth access to the raw data and computer models used to normalise the data to account for many confounding factors - noise as you suggest. If so I must apologise of course.
You obviously have no experience with noisy data, because at these scales comparing such small numbers with such high noise has huge error bars, "1 to 2 thousand percent higher" being as accurate as "enormous" or "tiny".
Rubbish. I'm not an expert in statistics but I understand the concepts well enough. What 'small numbers' are you talking about? The death rate for regular flu is widely published as 0.1% by various reputable bodies, based on very large data sets so the value should be pretty reliable and the error bars small.
The death rate for Ncov-19 is less reliable but the datasets are still pretty large given official numbers of cases exceeding 80,000. The number of deaths are known pretty reliably so the error bars for the 'death rate for known cases' will be small and varies for different locations and will change over time as the virus mutates and/or the virus loading of infected individuals varies as the weather changes etc.
The adjusted numbers, for those projected to have or have had the virus but not included in the official case numbers are where the noise/uncertainty comes in and will no doubt be quite large but will not change the obeservation that Ncov-19 has a much higher death rate than flu, with rates, published by reputable bodies, in the range 8 to 35 times that of flu.
I'm sure, if I could be bothered, I could find published papers that provide reliable estimates of the uncertainties. I can't so I am happy to rely on the the published numbers as being reasonable. If Ncov-19 has the same death rate as regular flu that would mean they have had nearly 3 million cases compared to the official figure of 80,000. If so I would suggest that would be almost impossible to hide and the spread would be completely out of control.
Essentially, the error bars at these scales are larger than the values themselves. You can make statistical predictions based on them, but their reliability is very poor.
What scales are you talking about? The scale, as in the death rate and infection rate itself has very little to do with reliability that is determined by the sample size which needs to be statisically significant - which is certainly the case for these figures
This is a perfect example of a dataset where your numbers are from a biased subset. The apparent numbers do not reflect the true characteristics.
Again, unless you have access to the actual data etc. I don't see how you can possibly make any claims about the reliabilty or uncertainty of the published numbers. Really, since you are the one making the claim that the 'official' numbers are unreliable then the onus is on you to provide some evidence.
"As evidenced"? Sorry, but that is just too daft to laugh at. [...]
I'm pretty certain that the extreme quarantine measures taken by the Chinese would have had at least as dramatic impact on the transmission of regular flu if not more.
Ah, you are the type that goes "that's too daft, as I'm pretty certain". I apologise for mistaking you for someone who considers things in a rational analytical fashion, instead of just going by the feel of your pants.
Ok, I apologise for being flipant, but there comes a point when there's little point continuing the discussion when it descends into, what one party or the other considers to be absurdity and I made that judgement. I try to keep an open mind and 'consider things in a rational analytical fashion' but your "as evidenced by" claim definately crossed the threshold where I considered that further discussion is pointless. Your suggestion is nothing but a hypothesis and certainly does not provide any evidence, any more than the lunar landing deniers present lots of 'evidence'.
This is the first time the spread of an infectitious disease seems to have been completely stopped by quarantining the affected regions. You might be pretty certain of you like, but history shows us neither European countries nor Northern America has managed that yet.
I'm definately no expert in this area but I would suggest that Ebola, SARs, MERs were stopped by human intervention but they were likely much less transmissable. Plenty of animal infections have been stopped by quarantining - eg. foot and mouth disease in the UK. Quarantining is a proven method for stopping the spread of disease if applied sufficiently rigorously.
In the case of China's effective quaranting of Ncov-19, I would further suggest it is the
only time it has ever been applied on a large scale outbreak so you cannot draw any conclusions about the transmissivity of Ncov-19 compared to flu based on this one outcome. Statistically absolutely insignificant.
Thus far, serious disease has only been managed through vaccination programs only. We know quarantine works, and epidemiologists have been talking about self-imposed quarantines as an effective method for these viral outbreaks for decades; average westerners have just ignored their advice completely, and keep sneering at Asians wearing breathing masks (whose intent is not to protect themselves from infection, but from spreading possible infection to others; this seems a concept too hard to understand for many).
I think we are largely in agreement here.
Yes, but they just about cope, ususally.
Be careful, you're waving your hands so hard you might start flying.
I've really no idea what you are trying to say here. I just checked and my hands definately aren't waving. How about addressing what I said? Do you believe that Western and Chinese health services haven't managed to cope reasonably well with previous flu outbreaks, albeit if considerably stretched on occasion?
Do you really believe that hospitals in China were not seriously overwhelmed by Ncov-19 cases on a much bigger scale than any flu outbreak in the last fifty years or so?
For the avoidance of doubt I believe that the impact of Ncov-19 on hospitals in China was very much worse than any recent flu and expect that western hospitals will be equally badly affected if the transmision rate isn't slowed by warmer weather.
Are you sure you're not trying to explain things according to your own fixed internal model, instead of looking at the various possibilities that could explain the phenomena we are seeing? I am trying to do the latter (because I am painfully aware of my internal tendencies to do the former, and absolutely hate it when it happens: it feels to me like getting lost because of being too lazy to look at the map often enough), and have pretty consistently described these as my current opinion. I could be wrong -- and do feel free to disagree, I and others here value the viewpoints -- but when you start saying things like "that's too daft to even laugh at" followed by "I'm pretty certain that" you sound like having to question your own beliefs or understanding is your worst fear. It shouldn't be; it is best to be your own advocatus diaboli, to inspect the roots of your beliefs and understanding, to find out where you truly stand.
I'm sorry but I can't muster the energy to try and comprehend the above philosophy. I'm taking a simple view and don't pretend to have any special knowledge of the disease - I'm simply observing its rapid spread and noting official death rates.
I conclude that as no significant measures have, as yet, been put into place to control movements to and from infection hotspots, especially Italy, that the virus is now out of control and a large percentage of the world population will contract the disease.
The spread hopefully will slow down as the public eventually reacts to the danger and modifies its behaviour. Given claims today that privately contracted staff working in NHS hospitals (eg. cleaners) will continue to work when infected because they won't get sick pay, doesn't give me much hope.
As an examples, of weaknesses in my own understanding, I really do not know how dangerous this situation is, because we really do not know the true number of infected. We know the lower bound, from people admitted to hospitals, but we have no reliable detection method, so the number of infected but with minor symptomps could be huge. In fact, the scariest scenario is that there are actually more than one virus involved here, possibly describing the reinfection cases. (The worst case scenario still is that the mutation rate is so high that human immune systems cannot keep up with it; this also makes any sort of effective vaccine highly unlikely.)
If anyone asks me how dangerous this is, I can only say truthfully "I don't know", or lie. I just don't have anything to correlate this with. So, instead, I just live with it, knowing that this epidemic or something like it will repeat at least once more in my lifetime, and I will then be even more susceptible (due to age) than I am now.
"I just live with it" or die with it perhaps. Let's hope not. I'm not personally interested in speculating about the possibilities of further mutations or the possibility of multiple viruses. There is enough to worry about as there is.