Pfizer/BioNTech Vaccine Protection Lasts At Least Six Months; 91% Effective Against Disease With Any Symptoms

 Ongoing Trial Shows Pfizer Covid-19 Vaccine Remains Highly Effective After Six Months by Maggie Fox.  CNN.  April 1, 2021.  

Older People May Require Different Vaccination Strategy

Covid-19 Vaccine May Not Work For At-Risk Older People, Say Scientists by Sarah Boseley.  The Guardian.  June 23, 2020.

"Weight Of Evidence Is On The Positive Side"--ACA Has Made A Difference

With The Affordable Care Act's Future In Doubt, Evidence Grows That It Has Saved Lives by Amy Goldstein.  The Washington Post.  September 30, 2019.

BMJ: There Is Evidence Of Benefit In Only Just Over 40 Percent Of Medical Treatments

Why Doctors Still Offer Treatments That May Not Help by Austin Frakt.  The New York Times.  August 26, 2019.