Hi all: I'm doing UW questions and as you know, there are a ton on vaccine schedules. I just got a question about a 45 year old man with all his childhood vaccines and diagnosed with HIV. I answered that you should give DPT, but their answer was Td because pertussis is rare in the adult population. I thought recent studies had revealed that pertussis is more common than people had thought and so now DPT would be recommended even for adults without HIV. Am I wrong? Or is UW just out of date? ... I really hope I don't get a picky question like that on step 2 since the vaccine recommendations change so frequently.