Vaccination against yellow fever required if arriving at the
airports of Dalian (DLC), Guangzhou (CAN) or Pudong (PVG)
within 6 days after leaving or transiting countries with risk
of yellow fever transmission [[TIRGL/YFIN]].


I am confused about the vaccinations especially the part that says, "within 6 days after leaving". After "leaving" what? Does this mean that my wife and I will have to have yellow fever vaccinations to leave the airport for one night?