Angela Rasmussen and Ya-Chi Ho explore the positive and negative aspects of the host immune response to SARS-CoV-2 infection and discuss how this knowledge influences therapeutic benefits.

We asked experts for measures people can take that may help boost defenses against COVID-19 and other respiratory diseases.

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

In humans, higher oxygen levels during ventilation are tied to an altered bacterial composition in the lungs, and mouse experiments show a causative link.

Milder, cold-causing members of this pathogenic viral family long remained under the radar, although they aren’t entirely harmless.

Super-resolution imaging identifies abnormalities in the hair-like protrusions on a cell’s surface and may help facilitate earlier detection of primary ciliary dyskinesia.

Some US states are waiting for the CDC to send replacement enzymes necessary for carrying out SARS-CoV-2 assays.

In light of recent reports of electronic-cigarette–related illness and death, UNC Chapel Hill professor Robert Tarran discusses the dangerous effects of e-liquids on the lungs.

The World Health Organization estimates that more than 7 million people died in 2012 due to air pollution, making it the number-one environmental risk on the planet.