more than 9 million confirmed COVID-19 cases in the United States since January 2020. With that number increasing every day, scientists remain focused on uncovering how the immune system responds to SARS-CoV-2, which is the virus that causes COVID-19, to combat it successfully.
Researchers have been investigating key questions surrounding immunity to SARS-CoV-2 since it first appeared, including how long protection from the virus lasts after recovery and whether or not the severity of the symptoms affects that immunity timeframe.
Stay informed with live updates on the current COVID-19 outbreak and visit our coronavirus hub for more advice on prevention and treatment.Uncovering these factors may influence the way in which scientists develop.