Gauranteed most effective – and looks like healthy Mountain Spring Water TM
Fresh mountain water with a mix of glacial flour and Giardia lamblia…
…otherwise known as Beaver Fever from it's association with beaver's urinating in the stream.
Excellent for double ended action – liquid explosive (no warning) pus / mucus discharge from both ends simultaneously.
I can testify to this – remembering being doubled up by a dirt runway in the Yukon with my kecks around angles and both ends going like that Icelandic volcano.
Onset can be immediate – some of my team mates were in maggot sleeping bags and self immolated with diahorea explosions that they couldn't escape from – and I am talking litres and litres of the stuff….
Breath / belches smell like rotten corned beef that's been left to mature in the sun…
infected individuals experience an abrupt onset of abdominal cramps, explosive, watery diarrhea, vomiting, foul flatus, and fever which may last for 3–4 days before proceeding into a more sub-acute phase. The majority of infected persons develop gradual symptoms that become recurrent or resistant.[14]
In both the acute and insidious onsets of symptoms, stools become greasy and malodorous but do not contain blood or pus because giardiasis does not involve dysenteric symptoms. Watery diarrhea may cycle with soft stools and constipation. Upper GI symptoms including nausea, early satiety, bloating, substernal burning, egg-smelling halitosis, and acid indigestion may be exacerbated by eating and are generally present in the absence of soft stools.[14]