Martin W
Cheikh Sadibou Fall, co-ordinator of the national anti-bird flu committee in Senegal, mainland Africa’s most westerly country, said they were on the alert. "We will study the cases to see whether migratory birds will spread the virus, and take appropriate measures … for the time being, we are on alert against any suspect cases of dead birds,"he said. Celia Abolnik, a senior researcher at South Africa’s Onderstepoort Veterinary Institute, said the institute was expecting samples for testing soon from live waterfowl in Malawi, Sudan and Kenya.

– "take appropriate measures" ? I’m afraid that seems rather sinister to me. So, hope wild bird tests prove negative – but with all the poultry infections in Nigeria, will surely be infected wild birds around. While in Nigeria:

Market sellers in northern Nigeria are doing a roaring trade in chickens which died from a mystery infection, despite fears of a deadly strain of bird flu, traders said on Wednesday.

When H5N1 reached Russia, I posted on a forum notions re H5N1 infections in and near a poultry area (in northwest China? – for instance, northern Xinjiang which had big outbreak in farm geese) might lead to fall in prices, and perhaps then trade of birds to areas that had no bird flu. I was ridiculed for this. And yet, still seems plausible to me. Infections in an area, prices fall; traders/farmers still want to sell birds – especially if compensation inadequate, and fear having flocks destroyed – and so birds sold on, moving H5N1 along trade routes. If so, maybe not too ridiculous to suggest that places that had seemed far from H5N1 might not have been over concerned about it. Webster et al in PNAS found that apparently healthy chickens could be infected – maybe as protected by another flu form, maybe as poor vaccines used. [What of vaccines; are they also smuggled? – been smuggled to Thailand, but I don’t know re to Russia, Europe, even Nigeria]