The child had recently traveled to OR, so it's unknown whether the patient caught the disease there OR in Idaho, since both states have rodents with plague.
The plague is caused by a bacteria, the Yersinia Pestis, which is carried by rodent animals.
As for plague cases in Idaho, there have been only two confirmed plague cases since 1990. In the 14th century, almost two thirds of Europe's population was wiped out by the disease during the Black Death.
Plague can be treated with antibiotics, and patients have a better chance of a full recovery if they seek treatment early.
Lab results this week confirmed he had the bubonic plague, which was one of the most devastating pandemics in human history.
A boy in Idaho is recovering after being diagnosed with the plague, health officials have revealed.
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The Centers for Disease Control and Prevention (CDC) stated that plague is now a rare disease among humans and transmission from a person to another is highly unlikely, so the child does not pose a risk to others.
The plague is generally transmitted to humans through the bites of infected fleas but can be transmitted by direct contact with infected animals including rodents and pets.
You are advised to stay away from rodents and to wear insect repellent. While the CDC reports that pneumonic plague hasn't been documented in the US since 1924, it can still be found in developing countries. An unusually high number of plague causes, however occurred in 2015, with 16 total cases. No one should feed rodents in parks and picnic or campground areas, and people should never handle sick or dead rodents. In most cases, there is a painful swelling of the lymph node in the groin, armpit or neck areas.
Talk to your veterinarian about using an appropriate flea control product on pets as not all products are safe for cats, dogs or children.
See your doctor about any unexplained illness involving a sudden and severe fever.
In the USA, people can contract the plague when disposing of squirrels or mice that died from the infection or traveled to an area where infected animals live.
Put hay, wood and compost piles as far as possible from your home.