....yeah, as you've seen, the manifestation of symptoms is variable,...(if any-- often takes a stressor of some type to bring it out... behavior is very similar to orchids, which are afflicted by several strains, and which I wept tears over losing some rare stuff at the nursery back in the day,...!)... BUT lets first wait and see if Medic finds any bugs,...
..Medic, forgot to add, there are lots of other ways virus' can be spread,.... pests, tracked in from outside, tools,...