How a Salmonella outbreak ravaged a Michigan restaurant for 11 years By Rachael Rettner Despite several remodels and deep cleanings, the building continued to harbor the bacteria.
Why do you sometimes gain weight after exercising? By Benjamin Plackett Why do people sometimes gain weight after they start to exercise regularly?
What is the hippocampus? By Natalie Grover The hippocampus is a small region of our brain responsible for memory, learning and navigation.
What is RSV? By Rachael Rettner In healthy children and adults, the virus typically causes mild, cold-like symptoms; but it can cause more serious disease in infants and the elderly.
Lab-made mini brains grow their own sets of 'eyes' By Yasemin Saplakoglu A group of scientists has grown mini brains that have something their real counterparts do not: a set of eye-like structures called "optic cups" that give rise to the retina
Man gets 'flesh-eating' bacterial infection from eating raw oysters By Rachael Rettner The man spent three weeks on life support.
Tetanus: Causes, symptoms, prevention and treatment By Siddhi Camila Lama Tetanus, also called lockjaw, is caused by bacteria found on rusty metals and many other surfaces.
Here's why you need to wash your hands for 20 seconds, according to physics By Rachael Rettner The authors created a simple mathematical model to simulate the movement of particles during hand washing.
US to recommend COVID-19 vaccine booster shots 8 months post-vaccination By Yasemin Saplakoglu U.S. health officials are expected to recommend that people receive an additional COVID-19 vaccine dose eight months after their second dose.
What is postpartum depression? By Ashley P. Taylor Many parents experience postpartum depression. Here's what it looks like and how it can be treated.
Does the explosion of the delta variant mean we need a new COVID-19 vaccine? By Stephanie Pappas COVID-19 vaccines largely prevent severe illness, but the delta variant raises the question of whether and when booster shots will be needed.
COVID-19 could mix up body's 'fight-or-flight' system By Yasemin Saplakoglu There's still much that’s unknown about the subtle impacts a typical COVID-19 infection may have on the body and the nervous system.
Child dies from rare brain-eating amoeba in California By Rachael Rettner The child most likely acquired the infection from swimming in a freshwater lake in Tehama County.
COVID-19 during pregnancy linked to preterm birth By Rebecca Sohn COVID-19 may increase the risk of giving birth prematurely, according to the largest study to date on this link.
Here's what you need to know about COVID-19 breakthrough infections By Yasemin Saplakoglu The COVID-19 vaccines that are used in the U.S. are highly effective. But sometimes, the coronavirus can still infect people who are vaccinated, causing so-called breakthrough infections.
3 men die in manure pit: Here's why it's a 'death trap.' By Rachael Rettner Decomposing manure produces hydrogen sulfide, methane, ammonia and carbon dioxide.
How deadly is the coronavirus delta variant? By Rachael Rettner Early data suggests the delta variant may cause more severe disease.
FDA to authorize 3rd COVID-19 vaccine dose for immunocompromised people By Yasemin Saplakoglu The FDA is planning to update the emergency use authorizations for Pfizer and Moderna's COVID-19 vaccines to include a third dose for immunocompromised people.
Which COVID-19 vaccine has the lowest rate of breakthrough infections? By Nicoletta Lanese Hints in the data suggest the Johnson & Johnson vaccine has the most breakthroughs, while Moderna has the least.
