The first time I got sick in India, I refused to believe that all I had was a case of common Delhi belly. I was certain something in my body had gone horribly wrong. The spasms of vomiting, the diarrhea, the waves of exhaustion that grounded me in my body and made it impossible to hold a thought in my head: how could all that come from a dollop of coconut chutney on my lunchtime dosa, or a plate of cut cucumbers at a five-star hotel, the one place where raw food is supposed to be safe?