Johanna Hol Fosse

The paper examines serological evidence of H5 avian influenza virus exposure in Arctic foxes in Svalbard, finding high seroprevalence and predominant H5N5 exposure in recent years.

The paper reports the first confirmed case of HPAIV H5N5 in a polar bear and Atlantic walrus in Svalbard, with widespread seroconversion in polar bears following initial bird detections.

The paper challenges ten ISAV-HPR-deleted virus isolates in Atlantic salmon to assess their virulence, finding wide variation in mortality and infection dynamics.

The paper reports a mass mortality event in Black-legged Kittiwakes caused by HPAI H5N1, detailing pathological findings and zoonotic potential.

This study uses single-nucleus RNA sequencing to identify two distinct endothelial response patterns to ISAV infection in Atlantic salmon.

The paper tests sheep for antibodies to H5 avian influenza virus eleven months after a nearby seabird outbreak, finding one positive case and highlighting the need to restrict livestock access to outbreak areas.