Brazil, the world's largest chicken exporter, on Friday reported its first case of highly pathogenic avian influenza - also ...

SAO PAULO -- SAO PAULO (AP) — Brazil, one of the world’s largest producers and exporters of poultry, on Friday confirmed the country's first bird flu outbreak on a commercial farm, the country's ...

The idea is biologically plausible and historically grounded—and it reframes how we think about the origin of pandemics.