The highly pathogenic avian influenza (HPAI) has spread in South America, with confirmed cases in both Bolivia and Ecuador. In Bolivia, the virus has been found in a commercial egg farm and a backyard flock in Sacaba and Quillacollo, respectively.

The World Organisation for Animal Health (WOAH) reported positive test results for both locations, with control measures such as stamping out, official destruction of animal products, quarantine, traceability, and movement control being implemented.

The serotype of the virus in these cases is not specified by the WOAH.

In Ecuador, multiple layer farms and backyard farms have been affected by HPAI since its first confirmed case in November 2022.

The confirmed cases in commercial layer operations, backyard flocks, and wild birds have been found to have the H5N1 serotype, but the serotype of the wild birds is not specified. The number of birds that have died in each flock and the total number of susceptible birds is listed in the report.