Virus killing dogs in Northern Michigan is parvo, unclear why tests are negative
Illinois Birddog Rescue
Mystery Illness Killing Dogs in at Least 10 U.S. States
Dogs afflicted with mysterious illness across the country, local vet advises caution
Mystery animal in Kentucky is identified
Mysterious dog illness reported in Indiana, no cases in Kentucky
How an 1800s Midwife Solved a Poisonous Mystery, Innovation
Neurological disorders in dogs: signs, diagnosis and treatments - Resources
Local veterinarian weighs in on mysterious dog illness
Dogs getting sick with parvo-like virus in northern Michigan, dying within 3 days
Researchers appear to identify source in respiratory illness that has sickened dogs across U.S. – NBC Chicago
Colorado dogs in danger from mysterious, potentially fatal respiratory disease, National
Dog Illness Tennessee
Mysterious dog illness reported in Indiana, no cases in Kentucky
Mysterious illness killing young dogs in Michigan has been identified: Officials - ABC News