Background Articles

Contagious cancers occur in clams and other bivalves, and some can even spread between different species of bivalves.

Right now, a lethal strain of bird flu is wreaking havoc in the Lower 48. It’s clear that migrating flocks have something to do with spreading the illness between farms and across continents -- but exactly what is still fuzzy. A remote spot in Southwest Alaska may hold some clues. Download Audio

All persons practicing veterinary medicine in North Carolina shall report these listed diseases and conditions to the State Veterinarian's office by telephone within two hours after the disease is reasonably suspected to exist.

A total of 80 stockfish fillets of Northeast Arctic cod (Gadus morhua), traditionally open-air-dried in northern Norway, was examined for the presence and viability of larval parasitic nematodes of the family Anisakidae. Anisakids (particularly those belonging to genera Anisakis and Pseudoterranova) are of public health and economic concern globally, since they are responsible for an underestimated fish-borne zoonotic disease called anisakidosis.

"White-nose syndrome" was found in Ontario and Quebec caves, mines and attics in the winter of 2009-2010. A decade after a devastating fungus first appeared in Ontario, wiping out up to 95 per cent of the province’s bats, scientists are beginning to see encouraging signs that bats may be on the rebound.

Idaho’s most controversial predator could play a role in managing the spread of a deadly deer and elk disease, according to a leading research scientist.

“Our past research in western Alaska has shown that while we have not detected the highly pathogenic avian influenza virus, up to 70 per cent of the other avian influenza viruses isolated in this area were found to contain genetic material from Eurasia, providing evidence for high levels of intercontinental viral exchange,” said Andy Ramey, a scientist with the USGS and lead author of the recent report. “This is because Asian and North American migratory flyways overlap in western Alaska.”

Alaska Wildlife News is an online magazine published by the Alaska Department of Fish and Game

By Ed Struzik. This article was originally published on Yale Environment 360. Canadian scientist Philip Marsh and I were flying along the coast of the Beaufort Sea, where the frozen tundra had recently opened up into a crater the size of a football stadium. Located along the shoreline of an unnamed lake, the so-called thaw...

Arctic fox rabies is enzootic in populations of arctic and red fox populations along Alaska’s northern and western coasts. This means rabies is always present in these populations at some low level but periodically there can be outbreaks called epizootics (an outbreak in animal disease rather than an epidemic as is it is called when occurring in a human population). However, the winter of 2020-2021 ushered in a widespread outbreak with persistent and large focus in and around Nome.

Biologists are collecting samples from moose and mustelids — that’s wolverines, minks and martens. There are plans to test caribou and Sitka black tail deer, as well as seals and belugas.

St. Jude Children's Research Hospital scientists discovered how the current epizootic H5N1 avian influenza virus (bird flu) gained new genes and greater virulence as it spread west. Researchers showed that the avian virus could severely infect the brains of mammalian research models, a notable departure from previous related strains of the virus.

CWD was first recorded in Saskatchewan in 1996 on a game farm, but has since moved into the wild deer, elk and moose populations, with wildfire-like infection rates in some areas. Up to 70 per cent of male deer are infected with the fatal disease, says a wildlife health specialist.

This strain does not seem to pose a serious risk to people but there's concern for backyard flocks and the wild birds that are a food source for many Alaskans.

Q fever is a febrile illness caused by infection with the bacterium Coxiella burnetii. It is most often transmitted by inhalation of the bacteria after it is shed by infected livestock. The antibody prevalence in NFS samples from 2009 and 2011 (69%) was significantly higher than in 1994 (49%). The antibody prevalence of SSL samples from 2007 to 2011 was 59%. All NFS vaginal swabs were negative for C. burnetii, despite an 80% antibody prevalence in the matched sera. The significant increase in antibody prevalence in NFS from 1994 to 2011 suggests that the pathogen may be increasingly common or that there is marked temporal variation within the vulnerable NFS population.

Dengue is erupting in South America — and has even found its way to the US.

The disease and virus likely exist well beyond the state’s borders, making the new name more scientifically accurate, officials say.

Ancient pathogens that have been preserved in northern Russia’s permafrost for millennia could reawaken as global temperatures rise, scientists warn, potentially putting humanity at risk of never-before-seen diseases.

The small Swedish town of Fagersta, Västmanland County, has been at the epicentre of the recent outbreak of African swine fever.All activities in an area of forest around 1000 square kilometers in the counties of Västmanland and Dalarna have been off limits since Friday following the discovery of dead wild boar.