VNA: Be aware of wild animal diseases
Hantavirus. Tularemia. Plague. Though rare, there have been more cases of these life-threatening diseases than usual in Colorado. All three involve exposure to animals, such as rodents and rabbits. Recent cases have not been reported in Routt or Moffat counties, but some have occurred in nearby areas.
“Although we have not recently seen these diseases in Northwest Colorado, that does not mean they are not present.” said Charity Neal, director of public health at the Northwest Colorado Visiting Nurse Association. “Conditions may exist in which humans and/or pets can be exposed to these bacteria or viruses.”
Hantavirus is primarily carried by deer mice and shed through their urine, droppings and saliva. People become infected when they breathe air contaminated by the virus.
There were six confirmed cases of hantavirus in Colorado in 2014, according to the Colorado Department of Public Health and Environment. There have been five cases so far this year; four were fatal.
Tularemia, or “rabbit fever,” usually infects rabbits, hares and rodents, such as mice, voles and beaver. People can contract the disease if they handle infected animals or are bitten by ticks or deer flies carrying the disease. Exposure can also happen by touching contaminated soil, drinking contaminated water or inhaling the bacteria.
There were 16 human cases of tularemia in Colorado in 2014 — the most cases since 1983 — and 15 cases so far this year.
Plague is mainly spread to people through flea bites and direct contact with infected animals, often rodents. Dogs and cats can also contract the plague from infected fleas and carry the fleas into the home.
Colorado reported eight human cases of plague in 2014, the highest number since reporting began in 1974. There have been two cases this year; one has been fatal. The bacteria has also been found in a cat, mule deer, prairie dogs and fleas.
Hantavirus, tularemia and plague can be treated if caught early. Seek immediate medical care if you have sudden onset of illness with symptoms such as fever, chills, muscle aches, severe headache, fatigue and shortness of breath and have been exposed to rodent areas or sick or dead rodents or other wild animals. The time between exposure and onset of symptoms is typically two to six days for plague, one to two weeks for tularemia and one to five weeks for hantavirus.
Take the following precautions to avoid these diseases:
• Never vacuum or sweep rodent infested areas. To safely clean these areas, wear rubber gloves and a mask. Spray a cleaning solution (a general-purpose disinfectant — the label must say “disinfectant” — or bleach solution) on droppings, dead rodents and nests. Wait five minutes, then wipe up, double bag and dispose. Give the area a final cleaning and wash hands.
• Rodent proof your home, outbuildings and work areas. Seal holes and keep indoor and outdoor areas clean. Eliminate food sources and harborage, such as piles of lumber, broken cement, trash and weeds around your home.
• Wear gloves while gardening or landscaping. Use a dust mask when mowing or doing yard work; do not go barefoot or wear sandals. Never mow over an animal carcass; use a long-handled shovel to dispose of it in a garbage bag.
• Wear an insect repellant effective against ticks, biting flies and mosquitoes when hiking, camping or working outside.
• Do not drink from unpurified steams or lakes or allow pets to drink surface waters.
• Keep pets from roaming or hunting, chasing or eating wild animals. Use insecticide powders or shampoos every few days on pets while in areas where plague could be present. Contact a veterinarian if your pet becomes sick with a fever or swollen lymph nodes or has sores around its mouth.
• Do not catch, play with or try to feed rodents or other wild animals. Avoid — and teach your children to avoid — all sick or dead wild animals. If you hunt, protect your hands and face while skinning or handling animals.
For more information about these diseases in Colorado, visit colorado.gov/pacific/cdphe/diseases-a-to-z.
Tamera Manzanares is marketing coordinator at the Northwest Colorado Visiting Nurse Association. She can be reached at firstname.lastname@example.org.
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