Supplementary Material from (In)validating experimentally derived knowledge about influenza A defective interfering particles

S1 Biological basis of key co-infection parameters of influenza A virus; S2 Alternative explanation for the reversal of DIP-mediated interference; S3 Sensitivity of the B&C assay to samples containing very high or very low DIP MOIs; S4 Classification of types and causes of curvature in the B&C assay; S5 Methods