On Thursday, scientists discovered the first casualty from the highly pathogenic avian influenza in a cackling goose.

Brazil is investigating another four new potential cases of highly pathogenic avian influenza (H5N1) in wild birds, according to authorities from the state of Espirito Santo, where Brazil's first ever cases were confirmed this week.

The Ministry of Health of Chile notified WHO of the detection of human infection with avian influenza A(H5) virus. The patient is a 53-year-old male from the Region of Antofagasta in the north of Chile.