Older Children Spread the Coronavirus Just as Much as Adults, Large Study Finds
In the heated debate over reopening schools, one burning question has been whether and how efficiently children can spread the virus to others.
In the heated debate over reopening schools, one burning question has been whether and how efficiently children can spread the virus to others.
The coronavirus pandemic’s effects on healthcare for tuberculosis (TB), malaria and HIV could lead to deaths of an order of magnitude similar to those from covid-19 itself in some… Read More
Infertility affects one in seven men of reproductive age worldwide. One idea for treating male sterility is spermatogonial stem cell (SSC) therapy. In this approach, sperm stem… Read More
Older women who eat more than one to two servings a week of baked or broiled fish or shellfish may consume enough omega-3 fatty acids to counteract… Read More
Exercise may help change exercisers’ brains in surprising ways, according to a new study of physical activity and brain health. The study, which included both mice and… Read More
The moon formed a little later than previously assumed. When a Mars-sized protoplanet was destroyed in a collision with the young Earth, a new body was created…
Caltech microbiologists have discovered bacteria that feed on manganese and use the metal as their source of calories. Such microbes were predicted to exist over a century… Read More
As the COVID-19 pandemic continues unabated in many countries, an ever-growing group of people is being shifted from the “infected” to the “recovered” category. But are they… Read More
Of the 150-plus coronavirus vaccines in development around the world, the lion’s share will rely on a needle prick to make their way into the body. Read More
An experimental coronavirus vaccine made by the biotech company Moderna provoked a promising immune response against the virus and appeared safe in the first 45 people who received it,… Read More