Mr Eberts was infected in a challenge trial, where participants get an experimental jab or placebo and before being exposed to the disease they were inoculated against. Nurses were quick to give him fluids to replace what was being lost, and put him on antibiotics to help fight the infection. Over the next 48 hours he faced stomach cramps, bloody diarrhea, a fever of 103F, and felt so exhausted that lifting any of his limbs was a 'Herculean effort'. Within three days he was waking up early with a feeling of 'funny business' in his stomach and having to rush to the bathroom. Jake Eberts, from Washington D.C., was paid $7,000 to ingest the shigella bacteria - often spread by contaminated water - at Maryland University last month. A 26-year-old researcher who drunk a shot of dysentery-triggering bacteria for a vaccine trial was left rushing for the toilet and feeling so ill he 'wanted to die'.