So far, most vaccines in the US are mRNA vaccines. These represent a new technology and are likely to take over the vaccine world. But how do they work? What are their weaknesses? Five experts explain.
March 16, 2021 • ~6 min
The coronavirus pandemic has driven a lot of scientific progress in the past year. But just as some of the social changes are likely here to stay, so are some medical innovations.
March 9, 2021 • ~12 min
The Johnson & Johnson vaccine is different from the Moderna and Pfizer vaccines in a few important ways that could make it a huge help to global vaccination efforts.
Feb. 25, 2021 • ~7 min
With the vaccines now being administered at sites around the US, it is important to address misinformation surrounding the effort.
Feb. 18, 2021 • ~10 min
Americans with excess weight and obesity have been hit hard by COVID-19. Now there is reason to believe they may not get the same protection from the vaccines.
Feb. 8, 2021 • ~7 min
Why it takes 2 shots to make mRNA vaccines do their antibody-creating best – and what the data shows on delaying the booster dose
With slow vaccine distribution and manufacturing, some people won't get the second dose on time. But does it matter?
Jan. 28, 2021 • ~6 min
Researchers say around 70% of the US needs to get the coronavirus vaccine to stop the pandemic. But questions around the vaccines and regional differences add some uncertainty to that estimate.
Jan. 5, 2021 • ~8 min
The cold supply chain can't reach everywhere – that's a big problem for equitable COVID-19 vaccination
So far, the only COVID-19 vaccines authorized for use need to be kept frozen. But there are many places in the world that can't support a cold supply chain.
Jan. 4, 2021 • ~7 min
A new strain of the SARS-CoV-2 virus that causes COVID-19 appears to be spreading fast in the the UK. What does this mean for vaccine developers and vaccinations?
Dec. 22, 2020 • ~6 min
COVID-19 vaccines have very specific storage requirements that make shipping a difficult task. Two ideas – fulfillment centers and cross-docking – could help overcome some distribution challenges.
Dec. 15, 2020 • ~7 min