It comes amid repeated setbacks in the worldwide vaccination campaign and a deepening crisis in places such as Brazil, India and France.
The CEO of Pfizer compared COVID-19 shots to "vaccines like flu that you need every year.”
Unfortunately, the mysterious ailment has other tragic and life-threatening symptoms.
Llukalkan aliocranianus appears to have been a top predator in its time, with hearing capabilities potentially exceeding those of similar dinosaurs.
A new study suggests it may be as common as postpartum anxiety and depression.
The largest and fastest asteroid of the year will zoom past in a week.
Experts share how the coronavirus variants, immunity and other factors will play a role in new shots — and when to expect them.
Michael Osterholm predicted "tough days ahead" for younger and older people alike as coronavirus variants surge.
The mass of plasma roiled above the magnetic North Pole for about eight hours, raining electrons instead of water.
We're a year into the COVID-19 pandemic. Feeling jealous that others are getting the shot and posting about it on social media is entirely normal.