Neosporosis can be fatal as can other parasites. Neospora is a single cell protozoan parasite that invades the nervous system and many other tissues including organs, muscle and skin.

Neospora infection is directly linked to feeding raw meat and results in progessive limb paralysis, as more and more of the nervous system is affected by invading parasites the symptoms progress from the brain down the spine and to vital organs and muscles which can leave the dog blind and paralised within days.

However Neospora can be passed to pups from a bitch in the womb proving that immunity is possible. There is also suggestion that antiprotozoal treatment is effective in combating Neospora.

You're right that freezing kills Neospora and I do freeze most of the meat I feed as it's not practical to feed fresh all the time. The risk of Neospora is highest in beef. But in all honesty I would feed fresh everyday if it was possible.

Another arguement is that a dogs immunity is heightened when feeding raw and the risk of infections is further reduced if you provide a well balanced raw diet.

Neospora is one of the many risks of feeding raw which is why you must do your research before feeding raw and be aware of all the risks and what symptoms to look out for. You have to remember there are thousands of raw feeders that have never ever had a problem, most cases of parasite infection are from people giving small amounts of raw meat to dogs primarily fed on commercial dog food.