Pfizer launches first COVID-19 vaccine trial for pregnant women
Pregnant women face a greater risk of severe illness from COVID-19 and have been frustrated by a lack of clear guidance on vaccination.
CDC director defends N95 mask restrictions despite greater supply
Is there a shortage of medical-grade N95 respirator masks? It depends on who you ask.
Biden announces deal for 200 million more COVID-19 doses
The U.S. now expects delivery of enough vaccine from Pfizer and Moderna to give full doses to 300 million people by July 2021.
CDC recommends double masks to protect against COVID-19
New guidance from the CDC advises wearing well-fitting, multilayer cloth face masks or layering a cloth mask over a disposable mask.
The factory that's racing to make Johnson & Johnson's COVID-19 vaccine
As Americans clamor for COVID-19 shots that can't seem to be produced quickly enough, Emergent BioSolutions will face its first test.
U.S. closing in on 50 million vaccine doses — who's getting them?
The CDC has released its first comprehensive look at the state of the nationwide vaccine campaign so far.
States to get more syringes to extract bonus COVID vaccine dose
Supplies of "low dead space" syringes that can extract an extra dose from vials of Pfizer's COVID-19 vaccine are scarce.
Some states want to buy their own vaccines. Biden administration says no.
Governors are hunting for ways to supplement their dwindling supply of COVID vaccine doses.
U.S. races to catch up with other countries in COVID sequencing research
The U.S. is estimated to lag behind more than 30 nations in its sequencing effort.
The COVID vaccine rollout is falling millions of doses short. Here's why.
The top adviser for the vaccination effort recently admitted that "shots in the arms" are taking place "slower than we thought it would be."
First case of fast-moving U.K. COVID-19 variant found in Colorado
The strain, which is believed to be more contagious, has been linked to a surge in cases in the United Kingdom.
COVID vaccine from Novavax is latest to enter Phase 3 trials
If it proves effective, Novavax's formula would have an advantage because it doesn't require specialized freezers.
Arizona certifies election results
The governor said the paperwork formalizing Kelly's election would be "hand delivered" to the secretary of the U.S. Senate "so that Arizona's newest senator can be sworn into office as swiftly as possible."
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Arizona 2020 election results: Biden projected winner
Arizona's 11 electoral votes are projected to go to Biden, who CBS News has already projected will win the election.
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Nevada 2020 election results: Biden is projected winner
Nevada has six electoral votes, and CBS News projects that Joe Biden will win, edgeing out President Trump by about 2 percentage points.