bro omnia, i very much agree with u that WL balek kampung doesn't really means that they SURELY had contracted communicable disease though they may a higher chance.
I came across with WL at 1818, she left after 3mth ++ working dere. I rtf a few times, did check-ups n cleared. Though she may have left sg, she went to Macau n be a WL dere. I do contact her n she said that she dislike sg therefore she left.
On the other hand, there are WLs who worked more than 1 yr in sg (YTL do have too). Shouldn't be they will have even higher chances to contract disease than those who had left early?
Moral of the story: Don't know, don't assume. Scare? Go do regular check-ups. Play hard, play safe and god bless. 
