Researchers say once you’ve had coronavirus, your immunity may last for a long time. KDKA’s Dr. Maria Simbra has more.

What happens to antibodies against the novel coronavirus over time? Researchers say there’s new evidence that COVID-19 antibodies wane over time; KDKA’s Dr. Maria Simbra reports.

Johnson & Johnson’s late-stage coronavirus vaccine trial is on pause.

Dr. Don Yealy, the chair of emergency medicine at UPMC, joins KDKA’s Ken Rice.

If you’ve had COVID-19, are you know immune to it? Some places are talking about giving out immunity certificates; KDKA’s Dr. Maria Simbra.