Health

Here's when the US will see a lot more vaccine doses

Millions more Covid-19 vaccines are on the way.Moderna, Pfizer and now Johnson & Johnson will deliver enough doses to fully vaccinate 130 million people -- more than one-third of the US population -- by the end of March, the pharmaceutical…

Everything old is new again: Repurposing drugs to treat Covid-19

The practice of finding new uses for old medications -- called repurposing or repositioning drugs -- is not new.The most famous (or perhaps infamous) example is sildenafil -- aka: Viagra. Originally developed to treat high blood pressure, the little blue…

Climate change is making pollen season — and your allergies — worse

Allergies aren't just a sneezy seasonal annoyance.Hay fever has major health and economic consequences. It exacerbates asthma and weakens defenses against respiratory viruses, resulting in more emergency room visits and disrupted schooling and work.Climate change has already made pollen seasons…