need a "viral replication" category

[miseminger]

Currently in S_convalescent_plasma_escape.txt, we have:

# Mutant found after in passage in plasma pool of 26 convalescents mean 1.5 post symptom onset, but also
# in cell culture without plasma, therefore likely a replication cycle fitness rather than polyclonal iummnuity escape variant.
# Schmidt et al. (2021) https://doi.org/10.1101/2021.08.06.455491 [Preprint (BioRxiv); Now published at: https://doi.org/10.1038/s41586-021-04005-0]
W64R

Since this is probably not an escape variant, I suggest moving it out of "convalescent plasma escape" and into something about "viral replication" (TBA).

[miseminger]

See also, on the same page:

# Mutant found after in passage in plasma pool of 26 convalescents mean 1.5 post symptom onset, but also
# in cell culture without plasma, therefore likely a replication cycle fitness rather than polyclonal iummnuity escape variant.
# Schmidt et al. (2021) https://doi.org/10.1101/2021.08.06.455491 [Preprint (BioRxiv); Now published at: https://doi.org/10.1038/s41586-021-04005-0]
T604I