Alice Park

Yes, We Have COVID-19 Vaccines That Are 95% Effective. But

It’s a rare glimmer of hope in a brutal and battering pandemic year: in November, both Moderna and Pfizer reported that their much-anticipated COVID-19 vaccines are 95% effective in protecting people against getting sick with the disease. Scientists were encouraged (and even surprised by the magnitude of the protection), public health officials finally saw what […]Read More

COVID-19 Vaccines Are Coming. Here’s What to Expect

Vaccines normally take decades to develop and test, but two COVID-19 shots, from Moderna and Pfizer (in partnership with BioNTech), have gone from nonexistent to about 95% effectiveness in 10 months. Public-health officials and governments now have the dual challenge of convincing the public that the vaccines are both safe and scientifically sound, as well […]Read More