Nature News reports that some geneticists are concerned that they only learned from a colleague's tweet that they might have been exposed to SARS-CoV-2.
In Science this week: comprehensive cellular map of the human thymus, evidence of admixture between the ancestors of Neanderthals and Denisovan and a 'superarchaic' population.
This superarchaic hominin population split from other humans about 2 million years ago and interbred with the ancestors of Neanderthals and Denisovans about 700,000 years ago.
In Nucleic Acids Research this week: pipeline for genotyping Alu retrotransposon mobile element insertions, previously undocumented non-coding RNAs, and more.
The New York Times reports that experts say President Joe Biden's goal of vaccinating 1 million people a day in the US in the next 100 days is too low a bar.
