bugged out on 06/15/2009

I have lived almost a year in this building when a month ago I began hearing about bed bugs on the first floor. The property managers sprayed the infested apartment. Then the guy directly above the first apt got them I believe they sprayed both apts then the guy on the 3rd floor got them. They sprayesd his apt and I believe the first two were infested again. Then two days later I found one in my second floor apt as well. Apts 107 207 307 and 209. Last year apt 301 303 reported bedbugs and were a