Headache, fatigue, malaise, and chills after COVID-19 vaccination are signs the immune system is marshalling a strong response against future infection, suggests a study
The main markers the Centers for Disease Control and Prevention (CDC) uses to track COVID activity showed small rises Friday from very low levels, including wastewater SARS-CoV-2 detections, which rose from the minimal to low level over the past week....
In other long-COVID research news, a study in the International Journal of Infectious Diseases describes new estimates of long-COVID incidence and clinical study trends in a number of regions.
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