Jan. 1, 2010 - Humans can infect pets with H1N1 virus

This week, the L.A. County Dept. of Public Health confirmed that a pet cat contracted the H1N1 influenza virus, probably from its owner. The owner had been ill with H1N1 for several days prior to the cat becoming sick. This cat is recuperating, but others in Oregon and Pennsylvania have died from H1N1 complications.

Cases of animals infected by humans have been reported nation-wide in cats, ferrets, turkeys, swine a cheetah and now a dog. Last week, a Bedford Hills, NY, dog became the first confirmed human-to-canine case in the US. According to IDEXX Laboratories, the dog’s owner had recently tested positive for H1N1 influenza virus. *

Officials at a wildlife preserve in Santa Rosa, CA believe that an animal handler was the source of a cheetah's infection, last month.

The American Veterinary Medical Association (AVMA) reports that the Bedford Hills dog was lethargic, coughing, not eating, and had a fever. X-rays showed evidence of pneumonia. Tests submitted to IDEXX Laboratories were negative for canine influenza (H3N8) but positive for H1N1. The dog is recovering after 48 hours of hospitalized treatment with intravenous fluids, antibiotics, nebulization and other supportive care.

The pet cat reportedly was sneezing and had a nasal discharge and occasional cough on Dec. 17. Swab test results from IDEXX were positive for both H1N1 flu and Mycoplasma felis, a type of bacteria that can cause conjunctivitis, respiratory disease and polyarthritis.

According to the L.A. County report, "While transmission of this virus to animals appears to be rare, it is still important for individuals with influenza-like illness to take precautions which will minimize spread of the virus to both humans and animals."

*Blood panels sent to IDEXX by Dr. Sandy now include testing for H1N1 at no additional cost.