For the past two or three weeks, the world has been fretting over a new Covid-19 virus variant in the UK, and imposing new travel restrictions to keep it out of other countries. But what if the variant is already everywhere?
We now have two remarkably effective vaccines. Both of them are RNA vaccines, a technology that has never been used before now. Their success is a huge win for everyone.
Social media was abuzz this week over a new study out of Denmark about the effectiveness of masks. The study seemed to cast doubt on whether masks really work. A closer look shows that these doubts are unfounded.
A new Alzheimer’s treatment failed in trials a year ago, but then Biogen re-did their analysis and claimed it works after all. What to believe? It looks like they did some cherry-picking.