Mixing Pfizer and AstraZeneca vaccines provides strong protection, according to a preliminary study.
Pfizer and Moderna Vaccines Are Likely to Produce Long-Lasting Immunity, Study Suggests
Air Pollution’s Invisible Toll on Your Health
Helping Drug Users Survive, Not Abstain: ‘Harm Reduction’ Gains Federal Support
As Parents Forbid Covid Shots, Defiant Teenagers Seek Ways to Get Them
Cryonics During the Pandemic – The New York Times
How to Make Summer Last (Almost) Forever
Gibraltar Votes to Ease Abortion Restrictions
Delta Plus, a New Variant, Raises Concerns in India
White House Says It Will Narrowly Miss July 4 Vaccination Goal

