Five poultry workers in Colorado have fallen ill with bird flu, bringing the yearly total to 9, as experts scramble to produce plans for tackling the outbreaks. Bird flu, or avian flu, is an infectious viral illness that largely spreads between both domestic and wild birds. Though there are many varieties of the sickness, with most not affecting humans, a number of strains have caused human deaths in the past. There have been 9 cases in 2024 so farAt the time of writing, there have been 5 new confirmed cases of bird flu, Centers for Disease Control and Prevention confirmed this week. All five …