A strain of avian influenza has been circulating among farmed and wild bird species and a number of mammal species at an unprecedented rate. This particular strain of ‘bird flu’ known as H5N1 - keeps on doing the unexpected. Now experts are concerned it could become a human pandemic. ⁣ ⁣ #razor #razor_science #razor_science_show #razorscienceshow #science #sciencetok #birdflu #avianflu #pandemic #h5n1 #influenza ⁣