COVID-19

A new preclinical study by Weill Cornell Medicine investigators found that certain bacteria in the gut may reduce susceptibility to SARS-CoV-2 infection, improve the immune response and prevent blood clots that can occur in severe COVID-19 illness.

A recent Pfizer or Moderna mRNA-vaccine booster provided good but temporary protection against infection by the SARS-CoV-2 omicron variant.

SARS-CoV-2 infections of women in late pregnancy frequently spread to their placentas and led to inflammation.

Adult vaccination rates and social determinants of health—or the social and economic conditions in which families live and work—have played an important role in children’s mental health during the pandemic, according to a new study led by Weill Cornell Medicine investigators.

The SARS-CoV-2 virus can infect specialized pacemaker cells that maintain the heart’s rhythmic beat, setting off a self-destruction process within the cells, according to a preclinical study co-led by researchers at Weill Cornell Medicine, NewYork-Presbyterian and NYU Grossman School of Medicine.

Booster doses of mRNA vaccines provided strong protection against hospitalization and death from COVID-19 in Qatar, though breakthrough SARS-CoV-2 infections were greater for the omicron variant compared with the delta variant, according to a study by investigators at Weill Cornell Medicine—Qatar.

Weill Cornell Medicine has been awarded a $9.8 million grant from the National Institutes of Health to lead a consortium of health care institutions that are analyzing nationwide health data in an effort to unravel the complexities of long COVID.

An FDA-approved drug that has been in clinical use for more than 70 years may protect against lung injury and the risk of blood clots in severe COVID-19 and other disorders that cause immune-mediated damage to the lungs.

COVID-19 may bring high risks of severe disease and death in many patients by disrupting key metabolic signals and thereby triggering hyperglycemia, according to a new study from researchers at Weill Cornell Medicine and NewYork-Presbyterian. 

In a Q&A, Dr. Roy Gulick breaks down the science underlying COVID-19 booster shots and answers some frequently asked questions about the vaccines.

A group of scientists led by researchers at the University of North Carolina at Chapel Hill, Weill Cornell Medicine and NewYork-Presbyterian reported that the Moderna mRNA vaccine and a protein-based vaccine candidate elicited durable neutralizing antibody responses to SARS-CoV-2 in pre-clinical research.

SARS-CoV-2, the virus causing the global COVID-19 pandemic, can infect human pancreatic cells and alter their physiology.

With in-person teaching in hospital and clinic settings suspended as the COVID-19 pandemic emerged, Weill Cornell Medical College swiftly designed innovative telehealth courses that enabled medical students to take part in remote patient care while also positioning them for post-pandemic careers with expanded digital healthcare options.

Women who receive COVID-19 mRNA vaccines produced by Pfizer-BioNTech or Moderna while in their third trimester of pregnancy generate a strong immune response and pass protective antibodies through umbilical cord blood to their babies.

With vaccine availability growing in New York City and across the country, attention is increasingly turning to those who are eligible but hesitant about getting the shot

Hematology and oncology specialist Dr. Jeffrey Laurence answers questions about the connection between blood clotting, COVID-19 and vaccines.

Two distinct diagnostic tests, a host/pathogen RNA sequencing platform, and spatially-resolved tissue mapping tools were created by a multidisciplinary team of Weill Cornell Medicine and NewYork-Presbyterian Hospital-led researchers and used to map SARS-CoV-2 infections at the height of the initial COVID-19 outbreak in New York City.

A team led by investigators at Weill Cornell Medicine and NewYork-Presbyterian has used advanced technology and analytics to map, at single-cell resolution, the cellular landscape of diseased lung tissue in severe COVID-19 and other infectious lung diseases.

Last spring, as the COVID-19 pandemic hit New York City with full force, Dr. Daniel MacGowan, a neurologist specializing in neuromuscular disease, was asked to consult in a COVID recovery ward.

As the COVID-19 pandemic enters its second year, scientists are urgently investigating ways to detect signs of the SARS-CoV-2 virus before an outbreak emerges.