New genetic and patient analyses suggest severe COVID is linked to overactive complement, one of the immune system’s oldest branches, and excess blood clotting.

About 15% of pregnant women admitted to two maternity wards in northern Manhattan in late March and early April were already infected with the new coronavirus; the vast majority had no symptoms.

Medical students at Columbia University Vagelos College of Physicians and Surgeons will graduate early and be offered temporary employment at NewYork-Presbyterian Hospital to help with COVID-19.

Columbia scientists have captured the first images of a new gene editing tool that could improve upon existing CRISPR-based tools.

A study reports that the brains of a small sample of patients who died of COVID display some of the same molecular changes found in the brains of people with Alzheimer's disease.

Pregnant women face greater risks to their health from COVID-19 than the general population and should be offered a vaccine if eligible, say experts at Columbia and NewYork-Presbyterian.

Wafaa El-Sadr, who helps lead the University’s COVID response, offers her tips for commuting safely amid COVID-19 and the delta variant.

A new preclinical study provides the first direct evidence that loss of a placental hormone during pregnancy alters long-term brain development, causing autism-like behaviors in male offspring.

Spread of a new SARS-CoV-2 variant in the New York City region that shares worrisome similarities with other recent variants has been identified by scientists at Columbia University.

Mice lacking an olfactory system have had their sense of smell restored with rat neurons, the first time scientists have successfully integrated the sensory apparatus of one species into another.

A new analysis of almost 10,000 patients found that tumors could be stratified into 112 subtypes regardless of the cancer’s origin.

Severe viral infections and critical illnesses can lead to blood clots that travel to the lungs, heart, or brain, but the danger may be even greater for COVID-19 patients.