Researchers identify immunological markers for SARS-CoV-2 reinfection

Tracking new hotspots of SARS-CoV-2 will become more important as the virus evolves and becomes endemic. New variants may be more contagious than previous ones — and escape vaccines. Serum biomarkers, identified in rhesus macaques, can differentiate between primary infection and reinfection. A tool utilizing these biomarkers may help identify surges in reinfection, scientists noted.