Extreme heat in Colorado may have contributed to an extraordinary outbreak of bird flu in people
By John Ingold | The Colorado Sun
The outdoor temperature flirted with 100 degrees and heat advisories blanketed the region earlier this month as workers arrived at a commercial poultry operation in Weld County to start killing chickens.
Of the 1.8 million egg-laying hens inside the operation’s barns, at least some were infected with highly pathogenic avian influenza — bird flu. The strain of the virus that is now circling the globe has shown a remarkable ability to infect all kinds of animals, from seals to skunks to mountain lions. But it spreads most rapidly and lethally in wild birds and domestic poultry.
When a commercial flock is infected, standard practice is grim but efficient: Kill all the birds at the farm, devastating one operation in the hopes of stopping the virus and...