H1N1FLUSYMPTOMS.US

The purpose of this study published by the New England Journal of Medicine (NEJM) was to analyze the clinical characteristics of patients hospitalized with 2009 H1N1 flu virus infections in the United States during April through June 2009. … Symptoms on presentation to a health care provider included fever (95%) and cough (88%). Diarrhea or vomiting was reported in 39% of patients, including 42% of children and 37% of adults. The average time from the start of illness …

Go here to read the rest:
CDC H1N1 Flu | Questions and Answers: NEJM article