Now documented that Ebola can recur, or else persist (and therefore be transmissible) from survivors.
Only 2 documented cases of recurrence. Must be v low risk.
Where blood/urine PCR positive, always ill. Detectable in urine, sweat for up to 40 days.
Circulating neutralizing antibody would reduce risk from blood, but “immune protected” sites different eg Eyes, Pregnancy / breast milk, semen, Central nervous system.
Only 2 cases of sexually transmitted ebola.
So far no evidence of persistence beyond 1yr.