Eight amino acids are identical to part of the human epithelial sodium channel, leading researchers to suspect the virus might interfere with the channel’s function.

Analyses from single-cell sequencing datasets support the idea that COVID-19 is not just a respiratory disease but an illness that can affect multiple organs.

The virus’s tool for prying open host cells is coated in a protective armor of sugar—but gaps may offer vulnerability to disruption by antibodies.

Infected children may harbor SARS-CoV-2 while showing less-severe symptoms than adults. Their young immune systems, ACE2 receptor levels, and even exposure to other coronaviruses might play a role in their resilience.