The COVID Symptom Study app aims to help patients and healthcare providers identify patterns in user-reported data.

A meta-analysis of seven randomized controlled trials concludes that dexamethasone and other corticosteroids reduce 28-day mortality in seriously ill patients.

Electron microscopy revealed that a deadly disease of birds was not a form of flu, but a different type of virus entirely.

A study of Nicaraguan children links prior Zika virus infection with aggravated dengue fever symptoms.

Increases in the levels of three cytokines are among the features linked to poor outcomes.

In a small study of patients hospitalized due to SARS-CoV-2 infection, researchers report distinct early differences between the antibody responses of patients who recovered and those who died, possibly paving the way for a tool to predict disease prognosis.

A handful of factors tip the scales in making a virus more likely to trigger a disruptive global outbreak. Right now, scientists tend to rank influenza, coronaviruses, and Nipah virus as the biggest threats.

A coronavirus has been commanding the headlines for months, but strains of influenza and paramyxovirus are extremely dangerous pathogens that could spark outbreaks.

Pangolins are poached for their scales and meat, leading researchers to develop a set of molecular tools to help track and mitigate the trade.