Brazil, the world's largest chicken meat producer and exporter, has imposed a ban on crowding birds at fairs, exhibitions, tournaments, and other events for the next 90 days to prevent the spread of bird flu. This preventive measure, adopted by the Ministry of Agriculture and Livestock, also prohibits outdoor or uncovered pen rearing of birds in commercial establishments. So far, Brazil has not seen cases of the highly pathogenic H5 Avian Influenza, but is implementing preventive measures following the rise of bird flu cases and outbreaks in other countries.