clean distances on HA1 only. HA1 evolves fasta and some fraction of sequences is HA1 only -> inflation of variance
clean distances on HA1 only. HA1 evolves fasta and some fraction
of sequences is HA1 only -> inflation of variance

blab/nextflu,blab/nextflu,blab/nextflu,blab/stability,blab/stability,blab/stability,blab/stability,blab/nextflu,blab/stability,blab/nextflu,blab/stability