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509 results
- Health & Medicine
U.S. pauses J&J vaccine rollout after 6 people of 6.8 million get rare blood clots
The COVID-19 vaccine’s pause is out of abundance of caution, experts say. The potentially deadly clots appear to be “extremely rare.”
- Health & Medicine
As 2020 comes to an end, here’s what we still don’t know about COVID-19
After making fast progress understanding COVID-19, researchers are still in search of answers.
- Health & Medicine
The COVID-19 pandemic is now a year old. What have scientists learned?
As we enter the pandemic’s second year, researchers share what they’ve learned and what they look forward to.
- Science & Society
COVID-19 has killed a million Americans. Our minds can’t comprehend that number
We intuitively compare large, approximate quantities but cannot grasp such a big, abstract number as a million U.S. COVID-19 deaths.
- Health & Medicine
How does the newly authorized Moderna COVID-19 vaccine compare to Pfizer’s?
The FDA has granted emergency use authorization to Moderna’s COVID-19 vaccine, bringing the number of vaccines available in the United States to two.
- Health & Medicine
Travel bans have barely slowed the coronavirus’s spread
Travel restrictions in Wuhan and greater China have only modestly impacted the spread of the virus to other countries, researchers say.
- Health & Medicine
New Pfizer results show its COVID-19 vaccine is nearly 95% effective
With final results – including showing its vaccine is 94 percent effective in the elderly – Pfizer is poised to request emergency use authorization.
- Health & Medicine
Some COVID-19 survivors face another foe: PTSD
The rate of post-traumatic stress disorder among survivors of severe COVID-19 is comparable to the rate among survivors of some natural disasters.
- Space
How Russia’s war in Ukraine hinders space research and exploration
A Mars rover, an X-ray telescope and several low-Earth satellites are at risk in response to international sanctions on Russia.
- Health & Medicine
A man in Hong Kong is the first confirmed case of coronavirus reinfection
During a 33-year-old man’s first round with the virus, he had symptoms, but not the second time — a hint his immune system protected him from disease.
- Health & Medicine
Moderna says its COVID-19 vaccine is nearly 95 percent effective
Another coronavirus vaccine appears to be very effective in preventing people from developing COVID-19 symptoms.
- Health & Medicine
Pfizer’s COVID-19 vaccine is 90% effective, preliminary trial data show
An analysis of 94 COVID-19 cases shows that the mRNA-based vaccine can protect people from getting sick, though the trial is ongoing.
