Bubonic plague is endemic in many countries in Africa and in the former Soviet Union, indicating that a. plague was once a huge problem and has now evolved to not cause infection. b. plague has been eradicated from these areas. c. large numbers of people are infected in these areas and it is spreading. d. the disease is always present in the population at a low frequency. e. human-to-human contact transfers plague.
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Plague was once a huge problem, but the statement doesn't imply that it has evolved to not cause infection. b. If plague is endemic, it means it has not been eradicated from these areas. c. The statement doesn't imply that large numbers of people are infected Show more…
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Identity and discuss a bacterial disease that caused a historically important plague or epidemic. What is the modern distribution of this disease? a. Bubonic plague caused by Yersinia pestis was a pandemic that occurred in the 14th century. In modern times, there are only about 100 cases of bubonic plague each year. The bacterium responds well to modern antibiotics. b. Bubonic plague caused by Yersinia enterocolitica was a pandemic that occurred in the 14 th century. In modern times, there are about $1,000$ to $3,000$ cases of bubonic plague each year. The bacterium responic plague modern antibiotics. c. Pneumonic plague caused by Yersinia pestis was a pandemic that occurred in the 14 th century. In modern times, there are about $1,000$ to $3,000$ cases of pneumonic plague each year. The bacterium responds well to modern antibiotics. d. Bubonic plague caused by Yersinia pestis was a pandemic that occurred in the 14th century. In modern times, there are about $1,000$ to $3,000$ cases of bubonic plague each year. The bacterium responds well to modern antibiotics.
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