With uncommonly good timing (and that's not sarcastic in case anyone thinks I'm being cynical) a new study in the American Journal of Epidemiology suggested flu (and pneumonia or STDs) during pregnancy were associated with increased risk of leukaemia in a child later in life. However, the study is small, and its findings may not be replicated in a larger study.
Anyway, the upshot is that flu sucks (beyond the obvious Dyson-suckiness of flu). So, get your shots. Unless you're like K___ and you're allergic.
Arse. Better not get the flu, baby!