Brazil's Santa Catarina state said it has ruled out an outbreak of bird flu in a commercial chicken farm while the federal government was keeping it on a list of suspected cases pending further tests.

Brazil, one of the world’s largest producers and exporters of poultry, has confirmed the country’s first bird flu outbreak on a commercial farm.

Brazil is still analyzing a new suspected case of bird flu on a commercial poultry farm, raising concerns the deadly virus may be spreading in the world’s largest chicken exporter.