Sorry it took a while to respond to this posting, work seems to be getting in the way.

The maggots themselves (internally), as they digest the dead tissue of the animal, will likely kill whatever bacteria is contaminating the tissue. However, since the exterior of the maggots are likely contaminated with enteric (from the gut) pathogenic (disease causing) bacteria, such as Salmonella, Staphylococcus and Streptococcus species, the eating of uncooked maggots (fly larvae) can led to food poisoning. The amount of maggots consumed does not necessarily correlate to potential infection. Even the consumption of 1 heavily contaminated maggot could lead to infection/food poisoning.

Pete