how to lie with statistics - mangling the vaccine effectiveness pcts

Steven Avery

Administrator
An example:

COVID-19 vaccine could reduce mortality rate by 70% - Weizmann professor Professor Eran Segal emphasized that even if Israel can't acquire vaccines for the entire population, distributing it to a select group would significantly reduce hospitalizations and deaths.

The first round of coronavirus vaccines could reduce the current mortality rate by 70%, Prof. Eran Segal, a computational biology professor at the Weizmann Institute of Science, tweeted on Saturday.

"Until the entire population can get immunized," he explained, "we need to remember that even hundreds of thousands of vaccines will significantly lower the damages [caused by coronavirus], and it would be worth it to pay a steep price for them."

Last week, Pfizer published interim analysis of their vaccine, which projected it to be 90% effective. "If that's true," Segal argues, "mortality rates will drop 62%. Even a vaccine that is only 70% effective will reduce mortality rates by 48%."

What a blunder.
Read about what "90% effective" means. It has nothing to do with mortality rates.

Pfizer and BioNTech Announce Vaccine Candidate Against COVID-19 Achieved Success in First Interim Analysis from Phase 3 Study
Monday, November 09, 2020 - 06:45am


All of this is based on PCR cases, which are often simply healthy and asymptomatic.


Listen: A 90 Percent Effective Vaccine
The lead principal investigator of the Pfizer vaccine trial explains the news that it’s 90 percent effective.
November 13, 2020
 
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