The World Health Organization confirmed its first fatal case of a new strain of bird flu infecting humans. The victim – a 59-year-old man from Mexico City – had no history of exposure to poultry or other animals. He had multiple underlying conditions and was bedridden for other reasons in the three weeks prior to his death, his relatives said, according to the WHO. The victim first experienced fever, shortness of breath, diarrhea, and nausea on April 17. On April 24, he was admitted to the hospital, where he died the same day. A respiratory sample sent to a lab after his death confirmed he was…