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Lyme disease is spread to humans through the bite of infected ticks.The tick population is affected by weather and climate.Many factors determine tick population densities as well as diseased population densities of ticks so that no single factor can determine likelihood of exposure to tick-borne disease. [1]
The occurrence of ticks and tick-borne illnesses in humans is increasing. [7] Tick populations are spreading into new areas, in part due to climate change . [ 8 ] [ 9 ] Tick populations are also affected by changes in the populations of their hosts (e.g. deer, cattle, mice, lizards) and those hosts' predators (e.g. foxes).
Lyme disease is the most common disease spread by ticks in the Northern Hemisphere. [21] [8] Infections are most common in the spring and early summer. [4] Lyme disease was diagnosed as a separate condition for the first time in 1975 in Lyme, Connecticut. It was originally mistaken for juvenile rheumatoid arthritis. [22]
Humans keep encroaching on forested land full of both those host animals and ticks. As for the ticks themselves, longer summers and milder winters mean they’re coming out earlier and sticking ...
About 63,000 cases of Lyme disease were reported to the Centers for Disease Control and Prevention in 2022, according to a report released last month. That’s a nearly 70% jump in the number of ...
Ticks have the ability to spread Lyme disease, Powassan virus, Rocky Mountain Spotted Fever and other potentially deadly illnesses. Early detection and removal are key factors in stopping the ...
Human granulocytic anaplasmosis (HGA) is a tick-borne, infectious disease caused by Anaplasma phagocytophilum, an obligate intracellular bacterium that is typically transmitted to humans by ticks of the Ixodes ricinus species complex, including Ixodes scapularis and Ixodes pacificus in North America.
But, as it has spread into new areas and infected more people, the CDC has struggled to capture the full impact. In 2022, the agency redoubled its disease surveillance efforts, with a special ...