But now, H5N1 seems to obtain spread by way of a densely packed mammalian population and gained no less than a single mutation that favors mammal-to-mammal spread. Virologists alert that H5N1, now rampaging by means of birds around the world, could invade other mink farms and become nonetheless additional transmissible. https://ragingbookmarks.com/story18296254/examine-this-report-on-news-today