Yes well done Wally your persistence has paid off :-D
So yes "Ingestion Problems" although, sanitation, washing, food preparation, insects etc can impinge on this, the chapter covers worms, amoeba, typhoid, dysentery, salmonella, polio, botulism etc
I can't find a specific EMER for Ferret for this mod. The was a general instruction for B vehicles in BAOR & specific vehicles in the UK. This was in EMER WHEELED VEHICLES A 017 Mod Instr No.8 Sept 1978. So I don't know whether your Ferret would have been one of those specific vehicles but that seems to have been the likely time for the mod.
The thing that above all that disgusted me was that on one BBC bulletin last Saturday this football contract "news" took precedence over news of the 10,000 people believed to have died in the Philippines.
Sorry Lauren missed you there. Nope its not that, lots of people have got close with elements of this rather broad section but not really got to it as many of these chapter titles have a degree of overlap.
Ah well all the easy ones have gone now!
It could be related but not predominantly. The one you suggest is prefixed in the chapter by:
"Water, water everywhere" (Samuel Coleridge Taylor)
But that would have been too easy
Not cholera Wally
But yes well done it would include typhus & other things especially malaria.
The chapter is "Insect pests & insecticides" I thought the beating wings would have been big clue