At InsideTracker, we've always been here to provide you with science-based guidance and the essential truths about your blood and genetic biomarkers—and now is no different. We noticed an influx of misinformation spreading about immunity and respiratory infections like COVID-19, and it's times like these when we feel we have a role to fill. Respiratory infections (also called respiratory tract infections) affect the sinuses, throat, airways or lungs, and include a range of illnesses from ...