David wrote:

There is a small chance that cats faeces may contain roundworms ( Toxocara
cati) or the eggs which could be transferred to people, along with the
health risks. My own advice would be to continue removing them!

Another reason for doing so is that cat faeces are relatively high in
protein (obligate carnivores often have relatively inefficient guts) so
might attract interest from scavengers such as rats. It's a shame,
though, as one could do with the extra nitrogent for the sawdust :-(

regards
sarah

--
Think of it as evolution in action.