HomeMy WebLinkAbout20201120_S Rader COVID response from T LockeFrom:Tom Locke
To:Sharon Rader
Cc:Liz Anderson; Vicki Kirkpatrick; Karen Abbott
Subject:Re: Covid vaccine question
Date:Friday, November 20, 2020 11:00:54 AM
Attachments:image001.pngimage002.png
Ms. Rader,
The Phase 3 trials for the Pfizer vaccine involved around 43,000 people in multiple countries.
Participants were randomized into two groups, one received the investigational vaccine and
the other received a placebo. 170 individuals in the trial developed Covid-19 as a result of
community exposure. 8 cases were in people who had received the vaccine, 162 cases were
in the unvaccinated group. This is where the 95% effectiveness information comes from.
Tom Locke, MD, MPH
Jefferson County Health Officer
From: Karen Abbott
Sent: Friday, November 20, 2020 10:47 AM
To: Tom Locke; Vicki Kirkpatrick
Cc: Liz Anderson
Subject: FW: Covid vaccine question
I have forwarded your question to Dr. Locke and to the Director of Public Health, Vicki Fitzpatrick.
Someone should respond soon. Thank you for your question.
Karen Abbott
Gender Pronouns: she/her/hers
Public Health Assistant
Jefferson County Public Health
615 Sheridan Street
Port Townsend, WA 98368
360-385-9421
kabbott@co.jefferson.wa.us | https://jeffersoncountypublichealth.org/
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From: Sharon Rader <sharon.rader@live.com>
Sent: Friday, November 20, 2020 10:42 AM
To: Julie Shannon <JShannon@co.jefferson.wa.us>; Karen Abbott <KAbbott@co.jefferson.wa.us>; Liz
Anderson <landerson@co.jefferson.wa.us>; Veronica K. Shaw <veronica@co.jefferson.wa.us>
Subject: Covid vaccine question
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Hi there,
I haven't been able to get this question answered and was hoping you might know the
answer.
When the reports say that a vaccine is 95% effective, does that mean that each trial
participant was intentionally exposed to coronavirus and 95% of them do not get sick? Or
does the trial rely on community exposure, which is much more random?
Thanks for your help.
Sharon Rader
970-903-3586