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Plague can take different clinical forms, but the most common are bubonic, pneumonic, and septicemic.

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Plague is transmitted between animals and humans by the bite of infected fleas, direct contact with infected tissues, and inhalation of infected respiratory droplets.

Is estimated R₀ for the infection to range between 1.5599 to 1.9332

Being infested could be avoided by having a good hygiene. Nowadays the transmission of this disease is rare.

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Historians estimate that it reduced the total world population from 475 million to between 350 and 375 million.

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You'll be hospitalized and given antibiotics such as streptomycin, gentamicin, doxycycline, or ciprofloxacinIn in some cases, you may be put into an isolation unit.

Mortality rate is from 30% to 60% for the bubonic type with a case-fatality ratio.

The recovery time is from one to two weeks.

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The incubation period is usually from 2 to 8 days.

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Yersinia pestis is an extraordinarily virulent, rod-shaped bacterium. It disables the inmune system of its host by injecting toxins into defense cells, such as macrophages, that are tasked with detecting bacterial infections. Once these cells are knocked out, the bacteria can multiply unhindered.

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The plague that caused the Black Death originated in China in the early to mid-1300s and spread along trade routes westward to the Mediterranean and northern Africa. It reached southern England in 1348 and northern Britain and Scandinavia by 1350.