The CDC's new dog entry rules, including a microchip requirement and stricter vaccination protocols, will uniquely affect Alaska, especially for those traveling with dogs under six months or through Canada.

Three young dogs were euthanized this week after testing positive for parvovirus, an Anchorage Animal Care and Control official said.

The Icelandic Food and Veterinary Authority (MAST) has reason to suspect that a bacterial disease called Brucella canis has been found in dogs in Iceland. RÚV reports that Bruncella canis can—in very rare instances—be transmitted from dogs to humans, with young children, pregnant, and immunocompromised people at the greatest risk of serious infection.

Norwegian authorities said up to 40 dogs had fallen ill with vomiting in at least 13 towns.