Septicemia is a systemic infection, iirc. Whether that was brought about by a dead baby in the womb, or whether the miscarriage was a result of the infection, I don't know. There is more to this than simply a case of 'an abortion would have saved her life' as some might have us believe.
Of course there is. One of the lies of the baby-killer industry is that prenatal infanticide miraculously makes extremely sick women well.