Re:WHO declares coronavirus outbreak a public health emergency
by arielweisberg on Thursday January 30, 2020 @03:53PM
(#22195449)
I thought flu vaccine efficacy varies year to year and is frequently not that great.
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Re:WHO declares coronavirus outbreak a public health emergency
by mdorazio on Thursday January 30, 2020 @04:11PM
(#22195647)
You're correct. See [1]. It's usually less than 50% effective, and as low as 19%. A troubling fact is that effectiveness has been on a downward trend the last 4 years.
[1] https://www.cdc.gov/flu/vaccines-work/effectiveness-studies....