mrswdk wrote:mookiemcgee wrote:mrswdk wrote:The WHO said COVID-19 is killing 3.4% of people infected. Given that's 3.4% across all age groups, the stats in Duk's picture sound perfectly plausible.
They did say this, however since most people who are sick (but not dying sick) aren't being tested there is no accurate denomonator to use in the equation. The real number is more likely .5-1% mortality rate
Yeah, your sweeping assumption and finger-in-the-air guess are probably a more credible source of evidence than the WHO's official statistics.
No, first you have to put the finger in your bum, and then put it in the air...I really hate having to use sources, but you are worth it

WHO's 'estimate' is based on a CFR calculus, and here is the problem with that:
Methods for Estimating the Case Fatality Ratio for a Novel, Emerging Infectious Disease - Ghani et al, American Journal of Epidemiology wrote:The case fatality rate (CFR) represents the proportion of cases who eventually die from a disease.
Once an epidemic has ended, it is calculated with the formula: deaths / cases.
But while an epidemic is still ongoing, as it is the case with the current novel coronavirus outbreak, this formula is, at the very least, "naĆÆve" and can be "misleading if, at the time of analysis, the outcome is unknown for a non negligible proportion of patients."
https://academic.oup.com/aje/article/162/5/479/82647
The real issue is the WHO's number are based on Lab confirmed cases, all of which are the most serious cases and largely ignore the minor cases
the WHO wrote:The Report of the WHO-China Joint Mission published on Feb. 28 by WHO is based on 55,924 laboratory confirmed cases. The report notes that "The Joint Mission acknowledges the known challenges and biases of reporting crude CFR early in an epidemic" (see also our discussion on: How to calculate the mortality rate during an outbreak). Here are its findings on Case Fatality Ratio, or CFR (the mortality rate):
"As of 20 February, 2,114 of the 55,924 laboratory confirmed cases have died (crude fatality ratio [CFR: 3.8%) (note: at least some of whom were identified using a case definition that included pulmonary disease).
The overall CFR varies by location and intensity of transmission (i.e. 5.8% in Wuhan vs. 0.7% in other areas in China).
In China, the overall CFR was higher in the early stages of the outbreak (17.3% for cases with symptom onset from 1-10 January) and has reduced over time to 0.7% for patients with symptom onset after 1 February. "
While only time will tell, the .07% number covering the rest of China where there are 'enough tests' for those actually showing symptoms is likely to be a far more accurate number
Swiss Medical Weekly wrote: The higher case fatality rate reported from Wuhan may be overestimated
The true number of exposed cases affected in Wuhan may be vastly underestimated. With a focus on thousands of serious cases, mild or asymptomatic courses that possibly account for the bulk of the 2019-nCoV infections might remain largely unrecognized, in particular during the influenza season.
Under-detection of mild or asymptomatic cases may be further fueled after further growth of the outbreak, as healthcare-facilities and testing capacities in Wuhan have reached their limits.
https://smw.ch/article/doi/smw.2020.20203
maybe you can help next time?
