Humans
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Health & MedicineAstraZeneca’s COVID-19 vaccine isn’t tied to blood clots, experts say
Multiple countries suspended use of AstraZeneca’s COVID-19 vaccine because of concerns about blood clots, but health authorities say the shot is safe.
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Health & MedicineWe still don’t know for sure where the coronavirus came from. Here’s why
A year into the pandemic, we know the virus probably came from bats, but how and why it leaped to humans are still unknown.
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Health & MedicineCoronavirus reinfections appear rare, especially in people younger than 65
Previous infections provide 80 percent protection in younger people and 47 percent in those over 65. Vaccines might help boost immunity further.
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Health & Medicine50 years ago, researchers treated chronic pain with electricity
In 1971, doctors eased chronic pain by sending electrical impulses to the spinal cord. Fifty years later, improved techniques help paralyzed people walk.
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Health & MedicineA deadly fungus behind hospital outbreaks was found in nature for the first time
Learning where the fungus Candida auris thrives in nature could help reveal why this yeast is dangerous to humans.
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Health & MedicineThe latest Ebola outbreak may have started with someone infected years ago
Rather than stemming from a virus that jumped from an animal to a person, this outbreak might have originated from someone who had a dormant virus.
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Health & MedicineSome 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.
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ArchaeologyA tour of ‘Four Lost Cities’ reveals modern ties to ancient people
In the book 'Four Lost Cities,' author Annalee Newitz uses cities of the past to show what might happen to cities in the future.
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Health & MedicineThe 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.
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AnthropologyRiches in a Bronze Age grave suggest it holds a queen
Researchers have long assumed mostly men ran ancient Bronze Age societies, but the find points to a female ruler in Spain 3,700 years ago.
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Health & MedicineA year ago, we asked 6 questions about COVID-19. Here’s how the answers evolved
A year after launching our Coronavirus Update newsletter, we revisit the first topics we wrote about.
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Health & MedicineAn experimental toothpaste aims to treat peanut allergy
By rolling an immune therapy into a toothbrushing routine, a company hopes to show its product can help build and maintain tolerance to allergens.