Preliminary tests indicate a commercial chicken farm in Brazil's state of Tocantins is free from bird flu, the state's farm agency said on Wednesday, a reassuring result following confirmation of Brazil's first such outbreak.

A person wearing a hazmat suit stands next to burning egg cartons and other items in a hole in the ground at a poultry farm after Brazil confirmed its first outbreak of bird flu on Friday, triggering protocols for a country-wide trade ban from top buyer China and state-wide restrictions for other major consumers,

Brazil, the worlds top chicken exporter, is facing its first bird flu outbreak on a commercial farm, triggering bans from major importers like China, the EU, and South Korea. The outbreak occurred in Rio Grande do Sul,