Michigan Dogs Start Dying from Mysterious Virus Linked to Mexico

A mysterious virus has started killing dogs in Michigan, with experts believing the canine parvovirus-like outbreak may be linked to cases in Mexico.

Dogs have been dying within a matter of days after catching the virus.

Officials have been unable to identify the cause of the outbreak but it bears resemblance to cases seen in Mexico City, however.

Cornell University College of Veterinary Medicine associate professor Elisa Mazzaferro has been investigating the virus outbreak.

Mazzaferro told The Detroit News on Monday that the virus reminds her of cases treated by an emergency clinician in Mexico City.

Otsego County animal shelter director Melissa FitzGerald is advising pet owners to head to a veterinarian immediately if their dog experiences parvovirus-like symptoms.

The symptoms include loss of appetite, lethargy, bloody stool, vomiting, and diarrhea. 

“Canine parvovirus attacks rapidly, dividing cells, including those of the gastrointestinal tract, and leads to vomiting and diarrhea,” said FitzGerald.

Most of the dogs infected with the mystery virus test negative for canine parvovirus, and even dogs vaccinated for canine parvovirus have fallen ill.

The mystery virus usually kills dogs within three days.

So far, over 50 dogs have died from the mystery illness, with cases still rising. 

Canine parvovirus isn’t contagious to other animals or humans. 

On Monday, the Michigan Department of Agriculture and Rural Development (MDARD) reported that several preliminary samples of infected dogs tested positive for canine parvovirus during necropsies.

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MDARD didn’t definitively attribute the outbreak to canine parvovirus, however.

State Veterinarian Nora Wineland clarified that they’d just launched their investigation and were awaiting further results. 

“We are still in the early stages of this investigation, but some of the first samples submitted to the Michigan State University Veterinary Diagnostic Laboratory were positive for canine parvovirus,” said Wineland.

“However, there are more results pending and more to be learned.”

Michigan State University (MSU) Veterinary Diagnostic Laboratory (VDL) director Kim Dodd clarified to MLive that the state and university together would “explore novel explanations” like new virus variants if unable to find the cause of the outbreak.

MDARD announced it is launching an intervention in the outbreak last Friday.

The first cases appeared across Otsego County, before spreading to Clare County.

Otsego County Animal Shelter explained in a Facebook post earlier this month that most of the dogs who contracted the mystery illness in their area were under two years old and died within three days.

On Monday, Melissa Fitzgerald, the shelter’s director, clarified that they haven’t heard of any survivors. 

The shelter reported that they spoke with veterinarians throughout their county and MDARD.

However, nobody has an explanation for the outbreak.

“No one has an answer,” the shelter stated.

“The best ‘guess’ is that this is a strain of parvo.”

In an update, the shelter clarified that they’d received more reports beyond northern Michigan to include central Michigan.

The shelter reported that properly vaccinated dogs hadn’t died from the virus in their area, in an apparent contradiction to their director’s remarks earlier this week.

However, Clare County Animal Control Director Rudi Hicks reported to the Clare County Board of Commissioners last Wednesday that both vaccinated and unvaccinated dogs infected with the mystery virus all died.

Hicks said that the state was “in a panic” over the mystery virus. 

Until further notice, officials are advising Michigan dog owners to refrain from taking their dogs to dog parks and on walks.

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By Frank Bergman

Frank Bergman is a political/economic journalist living on the east coast. Aside from news reporting, Bergman also conducts interviews with researchers and material experts and investigates influential individuals and organizations in the sociopolitical world.

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