There are vegan formulas. The soy Farley's formula that was already mentioned and can be imported from the UK. And I think Heinz does or did manufacture one in Australia.
As a vegan if my breasts got chopped off or whatever, I would first offer donor milk from another vegan, followed by donor milk from a vegetarian, then vegan soy-formula, then donor milk from a non-vegetarian, followed by an elemental formula, followed by an organic soy-formula.
Enough donor milk can be found if you know where to ask, but it is quite an ongoing chore. But I would exhaust myself trying for sure if I absolutely could not breastfeed.
(FWIW I had a few veg mamas offer milk to me if I needed it for my second son when my milk took 5 days to come in...I didn't end up needing it, but I was surprised at how I received such generous offers just from mentioning my possible quandary within days of giving birth. These were mostly local mamas too.)
Sheena - You may feel that newborns should not be vegan, but I can assure you that most vegans disagree. And most do very well on vegan formula if breastmilk is not available.
I didn't see this particular news story, does anyone have a link? So sad for that baby.
milk donation : mother to Ryan (6), AJ (5), Nate (2), Maia (1) all born at home, I have a kid-friendly food & bento blog, : :