Coronavirus

New research suggests that blood clotting from COVID infections could contribute to long-term brain fog and other cognitive issues

Research is under way to determine whether the mutation-laden lineage BA.2.86 is nothing to worry about — or has the potential to spread globally

COVID hospitalizations are slowly rising again this summer, causing scientists and clinicians to rethink if or when the disease will become a seasonal illness

The drug metformin cut long COVID risk by 41 percent in both people who were overweight and those with obesity. But treatments remain elusive

The COVID pandemic caused a U.S.-wide decline in fertility rates, but red states actually saw increases

Brain fog is such a nebulous term in long COVID that it delegitimizes efforts to get disability accommodations and medical leave

As the federal public health emergency is set to expire on May 11, here’s what you need to know about future COVID testing, treatment and vaccines

The World Health Organization has declared that COVID is no longer a “public health emergency of international concern” but cautions that it is still an ongoing health issue

Unregulated wild animal markets increase the risk of more epidemics

The FDA has authorized a second updated COVID booster for older people and immunocompromised individuals. Most healthy adults still have to wait

Recently released data from samples of the COVID-causing virus SARS-CoV-2 at the market where many early cases of the disease occurred suggest animals were present but stop short of proving that they were infected and transmitted the virus to humans

Unlike other senses, smell is not something doctors routinely test for—but some scientists think that should change