NEW YORK -- As Americans brace for the possibility of another difficult winter ahead in the nation's fight against coronavirus, there is a renewed sense of urgency to get as many people inoculated and ...

Breakthrough COVID-19 infection does not significantly affect CD4+ counts among vaccinated individuals with HIV.

Breakthrough infections - when a person gets infected despite being vaccinated - have become a widely discussed topic, especially after the COVID-19 pandemic. While this may sound alarming, medical ...

New research from scientists at La Jolla Institute for Immunology (LJI) suggests people who received COVID-19 vaccines and then experienced "breakthrough" infections are especially well armed against ...

The Covid-19 vaccines continue to offer strong protection against severe illness and hospitalization, according to research on more than 1 million people published Wednesday in The Lancet Infectious ...

Researchers discovered that people who experienced symptomatic breakthrough infections develop T cells that are better at recognizing and targeting SARS-CoV-2, including the Omicron and Delta variants ...