GENEVA: The source of a deadly E.coli outbreak in Germany could be a type of food preferred by women, given that more females seem to have fallen victim, a World Health Organisation expert said Friday. “It's probably something that women prefer more than men,” said Andrea Ellis, an epidemiologist at the WHO's department of food safety, in response to a question on why more women than men appeared to be falling ill. Regional German health authorities have reported more than 2,000 cases of people falling ill with EHEC poisoning, with symptoms including stomach cramps, diarrhea, fever and vomiting. In some cases it can lead to bloody diarrhea and potentially life-threatening conditions.