Hi yes I did a worm count in Nov and it was low but lady recommended equest dec / Jan time. Equest does the encysted redworms which don't show up on the counts so they advise to do it anyway. I should have done the tapeworm test as well really but didn't get round to it, I have heard its not 100% accurate but i'm by no means an expert. I just tend to have the normal counts done and take the labs advice for the next wormer.
Where have you heard that misinformed view of the saliva test? It's a really useful test properly validated by the excellent scientists who invented it. I don't think they would be very pleased to read that.