MSRA-1130

A 31-year-old female patient visits her doctor with complaints of feeling unwell for the past week. She reports experiencing headaches and mild abdominal discomfort. She denies having any diarrhea but mentions severe constipation. Recently, she returned from a 3-week trip to India. During the examination, her temperature is recorded as 38.5ºC, and she appears bloated. Additionally, a sparse macular rash is observed on her chest. What is the probable causative agent for this presentation?