Avian influenza was confirmed in four seagulls in Tromsø, Norway, prompting authorities to advise the public against handling dead or sick birds without protection.

High pathogenic avian influenza was detected in a wild black-backed gull in Vadsø, Norway.

A venomous lion’s mane jellyfish has been sighted on several west Swedish beaches between Strömstad and Malmö, delivering powerful stings that can cause breathing problems.

A New Hampshire resident's death from EEE prompts concerns over the virus's spread, leading to nighttime outdoor activity bans in Massachusetts towns.

A die-off last year at St. Paul Island, the first compelling case of fatal saxitoxin poisoning in marine mammals, comes as more harmful algae is found farther north

“Last year we got several reports from tourists and scientists that they saw around six walruses dead here on the west side of Svalbard. Unfortunately, we couldn’t sample them as the dead walruses drifted away by the time we got to the place. But it’s not normal to get so many reported dead walruses in such a small area," said Christian Lydersen, senior scientist at the Norwegian Polar Institute. Now samples (collected by a Station Manager in July 2023) have tested positive for highly pathogenic avian influenza.

Three adult harbor seals in Puget Sound have tested positive for the Highly Pathogenic Avian Influenza H5N1 strain, marking the first incidence of HPAI in marine mammals on the West Coast, and officials are urging beachgoers to avoid contact with wildlife.

White cysts in the muscle of salmon could be caused by Henneguya salminicola also called "tapioca disease". It affects the texture of the meat but is not a health concerns for people. White cysts could also however, be from a tape worm. That is a human health concern. Guidance on how to check the cysts to confirm and how to prepare food so it is safe to eat, is provided.

Avian influenza has now been detected along the entire coast of Finnmark. In Vadsø, the disease has not yet been detected, but almost 800 dead birds have already been removed. See video.

This is the ninth outbreak in the territory since 1965. About 60 bison died in an outbreak in Wood Buffalo National Park last year. More than 300 died in the territory's largest outbreak in 2012. Bison can become infected with anthrax while grazing or taking dust baths.

A Norwegian viper.snake (European adder) can make individuals very ill while others do not notice anything, Viper bites have doubled from 2022 to 2023 in the month of May in Norway.

The Ministry of Health confirms the occurrence of three deaths from Rocky Mountain spotted fever (RMSF) in Campinas/São Paulo, referring to an outbreak in the municipality.

A moose that was killed in Teller last week had been infected with rabies, the Alaska Department of Fish and Game confirmed.

Dead birds suspected to have died from Highly Pathogenic Avian Influenza have been found on Kigigak Island and Tutakoke River in Alaska, with other bird species displaying unusual behaviors.

Kjell Arvid Andersen thought the birds were behaved strangely. Then he and his neighbors found over 30 dead birds.

"Since about May 25, crews have been seeing multiple species showing what we believe are signs of highly pathogenic avian influenza. The signs we are seeing widespread is a headshaking that we equate to "getting the cobwebs out", like a person may do when they first wake up. This behavior occurs regularly every couple minutes. This behavior has been observed in: black brant, cackling geese, bar-tailed godwits, dunlin, lapland longspurs, spectacled eiders, emperor geese, greater white-fronted geese, sabines gulls, glaucous gulls, and red-necked phalaropes."

"The first wave of dead mussels washed ashore on July 14th, possibly earlier but this was the first report we received. I took the pictures included in my LEO observation on July 16th, and the temperatures were only just then beginning to climb into the upper 70s and lower 80s."

A bat in High Park tested positive for rabies on Wednesday, according to Toronto Public Health.

"Jakolof Creek is dry almost all the way up to the switchbacks and continues to recede. The early run of red salmon may have made it to the lake, but that is probably the only run that has."

During the summer of 2019, warm water temperatures lowered the amount of dissolved oxygen in rivers and caused salmon across the state, including Mountain Village, to die before they were able to spawn.