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Lyme disease, also known as Lyme borreliosis, is a tick-borne disease caused by species of Borrelia bacteria, transmitted by blood-feeding ticks in the genus Ixodes. [4] [9] [10] The most common sign of infection is an expanding red rash, known as erythema migrans (EM), which appears at the site of the tick bite about a week afterwards. [1]
Human infectious diseases may be characterized by their case fatality rate (CFR), the proportion of people diagnosed with a disease who die from it (cf. mortality rate).It should not be confused with the infection fatality rate (IFR), the estimated proportion of people infected by a disease-causing agent, including asymptomatic and undiagnosed infections, who die from the disease.
Ticks and lice form another large group of invertebrate vectors. The bacterium Borrelia burgdorferi, which causes Lyme Disease, is transmitted by ticks and members of the bacterial genus Rickettsia are transmitted by lice. For example, the human body louse transmits the bacterium Rickettsia prowazekii which causes epidemic typhus.
These pests can spread dangerous diseases such as Lyme disease, West Nile virus, Salmonella, plague, and hantavirus, said Jorge Parada, medical adviser for NPMA with a focus on infectious disease ...
For comparison, while it takes a tick carrying Lyme disease nearly 24 hours to pass the infection on to a human host, a tick with POW can transfer the virus in as little as 15 minutes.
According to the Centers for Disease Control and Prevention, humans get infected after being bitten by blacklegged ticks (or deer ticks). Lyme disease can happen to any age group, but those at ...
Borrelia miyamotoi is a bacterium of the spirochete phylum in the genus Borrelia.A zoonotic organism, B. miyamotoi can infect humans through the bite of several species of hard-shell Ixodes ticks, the same kind of ticks that spread B. burgdorferi, the causative bacterium of Lyme disease.
[10] [21] B. burgdorferi was previously believed to be the only species to cause Lyme disease in the US, but B. bissettiae and a new species called B. mayonii cause Lyme disease in the US, as well. [23] The remaining five human pathogenic species occur only in Europe and Asia.