Mike Coston at Avian Flu Diary has a post: FAO/ECTAD Report: H5N1 Case In Egypt. I'm glad he posted it, but the case was first reported ten days ago and we still know very little about it. The Hong Kong Centre for Health Protection's March 19 Avian Influenza Report doesn't list it, and I don't find anything about it in the major English-language Egyptian media.
Update: Many thanks to Kathy Gilbeaux of Haiti MPHISE who pointed me to two WHO documents: A March 12 report on Influenza at the Human-Animal Interface, and a cumulative tally, also dated March 12, showing one H5N1 case and one death for Egypt in 2013. The first deals almost entirely with the Cambodian cases, and the Egyptian case simply appears on a map. The second presents the case and death without comment either.
Update #2: And after another email from Kathy Gilbeaux, mentioning Lisa Schnirring's CIDRAP report on the case on February 18, I see that I posted about it on the same day. But it got completely lost (at least to me) in the rush of events in Cambodia and elsewhere.