The data is not yet published and the study is ongoing. But if this number holds up, it far exceeds public health experts' expectations.
Cytokines help the immune system kill pathogens, but too many cytokines can lead to bad health outcomes and may turn into a "cytokine storm."
Two large recent studies show that people hospitalized for COVID-19 in March were more than three times as likely to die as people hospitalized for COVID–19 in August.
Levels of the stress hormone cortisol in earwax could be a new way to track anxiety, depression and other medical conditions.
The researchers say this is the longest anyone has been reported to be contagious with COVID-19 while remaining asymptomatic.
The virus has mutated in mink — as might be expected — but we don't know if those mutations changed the virus significantly.
In the absence of a COVID-19 cure or vaccine, scientists are investigating whether vitamin D can reduce the risk of COVID-19 infection.
Across the world, immunologists who retooled their labs to join the fight against SARS-CoV-2 are furiously trying to explain why some people get so sick while others recover unscathed.
A famous equation used in the search for alien life has inspired a new model that estimates the risk of COVID-19 transmission.
The Centers for Disease Control and Prevention has new guidance clarifying what exactly “close contact” means when it comes to transmission of SARS-Cov-2, the virus that causes COVID-19.
Scientists have found a second doorway, called neuropilin-1, that the novel coronavirus uses to invade human cells.