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Vinay Prasad MD MPH is a hematologist-oncologist and Associate Professor in the Department of Epidemiology and Biostatistics at the University of California San Francisco. He runs the VKPrasad lab at UCSF, which studies cancer drugs, health policy, clinical trials and better decision making. He is author of over 300 academic articles, and the books Ending Medical Reversal (2015), and Malignant (2020). He hosts the oncology podcast Plenary Session, and runs a YouTube Channel VinayPrasadMDMPH. He tweets @VPrasadMDMPH.
1 posted on 02/07/2022 5:20:23 PM PST by CedarDave
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To: ransomnote

Please ping to your list.


2 posted on 02/07/2022 5:24:33 PM PST by CedarDave (Pfizer's boosters: You just turned your immune system's functionality into a subscription service!)
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To: CedarDave

Conclusion: “Masks work”.
Okay, that we have that settled, so whip me up a study that shows that it’s true ...

Science!!


3 posted on 02/07/2022 5:27:09 PM PST by ClearCase_guy ("If you see something, say something"? I see people dying from vaccines.)
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To: CedarDave

The CDC has proven to be incredibly irresponsible.


5 posted on 02/07/2022 6:29:37 PM PST by SomeCallMeTim ( The best minds are not in government. If any were, business would hire them!it)
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To: CedarDave; ClearCase_guy; lizma2; SomeCallMeTim; dsrtsage
After I sent the below letter to my list in which the CDC demonstrated masks did not work and then proceeded to ignore their own evidence, I found a supposed Randomized Controlled Trial done in Bangladesh that said they did work. However, the 10%-12% difference was the result of factors besides masks.

From: Retain Mike Sent: Thursday, October 14, 2021 3:26 PM To: keri.lopez@redmondschools.org Subject: Mask Mandate

The Center for Disease Control (CDC) proclaimed its latest policy about masks and our governor mandated wearing by children as school began.

However, the best science the CDC could provide was uncontrolled studies highlighting first such groups as 139 hairdresser clients, 382 sailors on the U.S.S. Roosevelt, 124 Beijing households, and 839 Thailand residents subject to contact tracing. All results came from observation followed by personal judgement, and none result from the mathematical disciplines used to rigorously evaluate complex environments. In the same article the CDC disparaged the 2020 randomized controlled trial (RCT) in Denmark involving 4,862 participants, which found no benefit to wearing masks to prevent infection.

The disciplines of a RCT divides participants into different groups on a randomized basis. Random assignment means that factors not specifically controlled can cancel each other out by appearing equally in both groups. One group receives the treatment (which in this case was the mask) and the other group does not. Researchers can isolate the one variable and are not able to introduce biases to produce a preferred outcome.

RCT’s are considered the highest standard for this type of research. Therefore, the most reasonable approach for the CDC would have been to consider this study as a benchmark against which others would be evaluated, including studies from other countries which found masks ineffective and even harmful.

The above represents an especially valid approach, since the first four combined citations from their May scientific brief had less than half the participants of the Danish study. The proposed approach is especially valid also because the CDC dismissed the study for involving only .001 of Denmark’s population. At the same time polls predicting the decisions of 150,000,000 voters in a national election were determined by less than1,500 participants or less than .00001.

Do Masks Work?,

https://www.city-journal.org/do-masks-work-a-review-of-the-evidence?wallit_nosession=1

Effectiveness of Adding a Mask Recommendation to Other Public Health Measures to Prevent SARS-CoV-2 Infection in Danish Mask Wearers: A Randomized Controlled Trial

https://pubmed.ncbi.nlm.nih.gov/33205991/

Science Brief: Community Use of Cloth Masks to Control the Spread of SARS-CoV-2

https://www.cdc.gov/coronavirus/2019-ncov/science/science-briefs/masking-science-sars-cov2.htm

Absence of Apparent Transmission of SARS-CoV-2 from Two Stylists After Exposure at a Hair Salon with a Universal Face Covering Policy — Springfield, Missouri, May 2020

https://www.cdc.gov/mmwr/volumes/69/wr/mm6928e2.htm

Surgeon Shows CDC Top Evidence On Why Wearing Masks Work

https://freerepublic.com/focus/bloggers/3988508/posts

Face masks for children: Both ineffective and dangerous

https://www.wnd.com/2021/09/face-masks-children-ineffective-dangerous/

All the tragic potential harms of face masks

https://www.wnd.com/2021/09/tragic-potential-harms-face-masks/

Kids Full of Life, Adults Obsessed with Death: The insanity of masking children—by the numbers

https://freerepublic.com/focus/f-news/4035214/posts

https://www.city-journal.org/school-mask-mandates-are-unnecessary?wallit_nosession=1

Do masks work?

https://www.city-journal.org/do-masks-work-a-review-of-the-evidence

7 posted on 02/07/2022 7:00:47 PM PST by Retain Mike ( Sat Cong)
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