Dr. Eileen, Founder of Fit Med, discusses tests for Covid-19 to help us understand our immunity and how to interpret the PCR genetic diagnostic test, antibody serology test, and antigen test. What do they mean for you? AntibodyantigenCoronavirusCOVID-19COVID-19 immunityCOVID19immune systemIMMUNITYPCRtestingtestsvideoVITAMINvlogYouTubeRelated Posts COVID’s New Variant Is Spreading Faster Than Expected April 16, 2026 These Aren’t Just Hormone Problems April 16, 2026 New COVID Variant ‘Cicada’ Spreading Across U.S. | Seniors at Highest Risk April 15, 2026 Persistent immune activation and MS explosion #diseaseprevention April 13, 2026 Cicada COVID Variant Spreading in U.S. | What Doctors Want You to Know Now April 12, 2026 New COVID Variant Affecting Kids April 7, 2026