A/Victoria/4897/2022 (H1N1)pdm09 - lignende stamme (A/Victoria/4897/2022 IVR-238) (inaktiveret)
B/Austria/1359417/2021 - lignende stamme (B/Austria/1359417/2021 BVR-26) (inaktiveret)
A/Darwin/9/2021 (H3N2) - lignende stamme (A/Darwin/9/2021, SAN-010)