https://inbios.com/covid-19-flu-a-b-respiradx-additional-invalid-results/
COVID-19/Flu A&B - Interpreting Your Results - InBios International, Inc.
Jan 28, 2026 - Interpreting Your Results Look for lines next to "C" (Control), Flu B, Flu A and "COVID". Check to see if a line is visible at the Control Line labeled "C" on...
interpreting your resultsa bcovidflu