Future-proofing and maximizing the utility of metadata: The PHA4GE SARS-CoV-2 contextual data specification package Por Griffiths, EJ, Timme, RE, Mendes, CI, Page, AJ, Alikhan, N, Fornika, D, Maguire, F, Campos, J, Park, D, Olawoye, IB, Oluniyi, PE, Anderson, D, Christoffels, A, da Silva, AG, Cameron, R, Dooley, D, Katz, LS, Black, A, Karsch-Mizrachi, I, Barrett, T, Johnston, A, Connor, TR, Nicholls, SM, Witney, AA, Aanensen, DM