Key point from the NEJM article on the #H5N1 case in Canada: The NP swab was (+) for Flu A but (-) for A(H1) and A(H3) on the BioFire Respiratory Panel.

Remember- Routine Flu A testing won’t confirm #H5N1. If the subtype is unidentifiable, important to test for H5N1.

https://www.nejm.org/doi/full/10.1056/NEJMc2415890