COVID-19

Readers simulated the genetics of dog breeding to solve a puzzle about mixed breed percentages and sexual reproduction.

Herd immunity differs from place to place, and many factors influence how it’s calculated.

Many theories have been offered for why the official COVID-19 toll on the Indian subcontinent has been surprisingly low. The best explanation may be the shortage of good, timely data.

Solve a puzzle about mixed dog breeds, sexual reproduction and the COVID-19 pandemic.

Neural networks have been taught to quickly read the surfaces of proteins — molecules critical to many biological processes.

In the fight against viruses and other pathogens, scientists are looking beyond genes and proteins to the complex sugars, or glycans, on cell surfaces.

As COVID-19 cases continue to increase, our extensive knowledge of other coronaviruses informs our understanding.

Modern mathematics relies on collaboration and travel. COVID-19 is making it increasingly difficult.

Zoonotic diseases like influenza and many coronaviruses start out in animals, but their biological machinery often enables them to jump to humans.