What characteristic often shared by emerging diseases complicates initial contact tracing and quarantine measures?

Answer

Initial outbreaks may involve unclear transmission routes.

A key characteristic of EIDs is that initial outbreaks may involve unclear transmission routes, which complicates the ability to conduct effective contact tracing and quarantine measures until the exact method is confirmed.

What characteristic often shared by emerging diseases complicates initial contact tracing and quarantine measures?
diseasepathogenInfectionemergence