Is it true that they only admit 4 students out of 250 applicants? That's less than 5%... Berkeley has 13% so I think BU shouldn't be too different. Also thanks for letting us know about Berkeley and Columbia! I haven't heard anything from them either.
Hey don't panic! I noticed that in the result page, acceptance to PHS program still keeps coming out. Also I'm not sure which schools you applied for, but it seems to me that those schools sent out their decision letters quite early, as I'm still waiting for decisions from a few schools that I applied for. So it's not too late and there's still hope! Good luck!!