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1 day ago · The Black Death is widely believed to have been the result of plague, caused by infection with the bacterium Yersinia pestis. Modern genetic analyses indicate that the strain of Y. pestis introduced during the Black Death is ancestral to all extant circulating Y. pestis strains known to cause disease in humans.
3 days ago · The history of South America is the study of the past, particularly the written record, oral histories, and traditions, passed down from generation to generation on the continent of South America. The continent continues to be home to indigenous peoples, some of whom built high civilizations prior to the arrival of Europeans in the late 1400s ...
2 days ago · During this time the common point of view was that women were inferior beings, connected to Aristotle’s ideas of male superiority. Saint Thomas Aquinas supported this idea and in his writing, Summa Theologica stated “'some old women' are evil-minded; they gaze on children in a poisonous and evil way, and demons, with whom the witches enter ...
Apr 30, 2024 · Common Diseases Leaf Spot Bougainvillea Plant Problems. Leaf spot is a fungal disease that can cause circular or irregular spots on Bougainvillea leaves. The spots can be yellow, brown, or black and can be surrounded by a yellow halo. Leaf spots can cause premature leaf drop and weaken the plant. Powdery Mildew
5 days ago · Common cold. The virus for the common cold survives because it is constantly changing and mutating, allowing it to evade vaccines and cures. One consequence is that the rare “mutant” strain of ...
Apr 27, 2024 · To create a garlic spray, crush several cloves of garlic and mix them with water. Allow the mixture to steep overnight, then strain and spray it on the affected plants. Copper Solutions Copper-based solutions, such as copper sulfate, are effective against bacterial and fungal diseases.
Apr 26, 2024 · About half of the outbreaks involved more than 10 cases. From September 1, 2018 to August 22, 2019, 19 state health departments reported 898 mumps cases in adult migrants detained in 57 detention facilities. From 2009 to 2010, two large outbreaks occurred. One outbreak involved over 3,000 people and mostly affected students who were part of a ...
