1114 HW.6s18. docm Protected View-Saved to this PC Layout References Mailings Re

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1114 HW.6s18. docm Protected View-Saved to this PC Layout References Mailings Review View Help Tell me what you want to do [81 Plague bacteria, Yersinia pestis (the same bacteria that caused the European plague of 1347), are still found in rodents in highly rural areas of Arizona and New Mexico as a result of an infestation from Asia about 1900. Which of the following hypotheses best accounts for the lack of a plague outbreak among people living in these areas? a) None of the bacteria are resistant to antibiotics. b) A low human population density is in contact with infected rodents. c) U.S. citizens are descendants of plague survivors and therefore are immune to plague. d) The fleas on U.S. rodents refuse to bite humans and transfer the plague bacteria e) Extensive antibiotic use in pets and people make it impossible for plague to spread Have you visited an SI session? Homework #6 PRINT NAME legibly Signature

Explanation / Answer

b. the low number of humans are in contact with rodents that is why few cases been reported from there. it is always advised to avoid contact with rodents and restrict pets to roam outside so that they don't catch infections from wild rodents and spread infections.

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