Food Safety Report: Shake Shack (Elements), Elements, Austin Road West, Tsim Sha Tsui, Hong Kong 2 years ago • details 132 Comments Comment Suspected food poisoning: diarrhea for 2+ days, just starting to get better on day 3, intermittent fever, nausea, headache suspected source: shack burger and/or dark choc chip concrete onset: around 3-4 h