Invasive Species | ||
Answer: The Europeans. European explorers and settlers brought with them measles, smallpox, cholera, syphillis, influenza, tuberculosis, and other diseases. Millions of Native American Indians were killed by these newly introduced diseases. | ||
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1918 Pandemic Soldiers returning from fighting in Europe in World War I brought influenza sometimes referred to ass the Spanish Flu. Twenty five million people including millions of Americans were killed by this disease. | ||
HIV/AIDS Acquired immune deficiency syndrome (AIDS) is a wie spectrum of conditions caused by the human immunodeficiency virus (HIV). HIV is transmitted primarily via unprotected sexual intercourse (including anal and oral sex), contaminated blood transfusions, hypodermic needles, and from mother to child during pregnancy, delivery, or breastfeeding. HIV was identified in the 1980's and was spread to the Uniteed States through immigration and travel from Africa, South and Central America and the Carribbean. | ||
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