Anaplasmosis is a tick-borne disease affecting dogs that can cause symptoms like fever and lethargy, with some dogs showing no signs of illness. The prevalence of the disease in California has dramatically increased, almost tripling from 2021 to 2024. Over half of California counties are considered at high risk for this disease, which is spread by the same ticks that cause Lyme disease. Experts contend that climate change contributes to the escalation of tick-borne illnesses by expanding the ticks' habitat and activity period.
"Anaplasmosis can make dogs feverish or lethargic, turn their nose up at food, and lose weight, but many show no sign of illness at all."
"The percentage of dogs across California that tested positive for exposure to the bacterium that causes anaplasmosis skyrocketed in the last five years, nearly tripling between 2021 and 2024."
"When the prevalence starts to go up in the animal population, we know that the public health risk has, by default, also gone up."
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