close
close

FILE PHOTO: Brazil strengthens bird flu protection to protect world’s largest chicken industry in Campinas | USA and world

FILE PHOTO: A worker dilutes serum samples from poultry for ELISA test for the detection of antibodies against the avian flu virus at the Reference Laboratory of the World Organization for Animal Health in Campinas, Brazil, April 25, 2023. REUTERS/Amanda Perobelli/File Photo