Zeng+Wing+&+Nathan+choices

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=Did you know?=

In 1918, WWI American soldiers unwittingly carried the deadly [|virus] from a Kansas military camp to the European Theater of War. Flu turned up next in Poland and circled the globe, in three waves of disease that lasted until 1920. At least 20 million, possibly 40 million people died.25 Death came quickly, often within days. Historians believe the virus infected half the world population of two billion people. In the mass upheavals caused by the Great War, disease spread along transportation routes from ports to cities, reaching even the remote islands and villages, including Western Samoa and Inuit settlements in Alaska. In the United States, an estimated 550,000 people died, and life expectancy dropped by 12 years.26 Historians speculate that the flu helped end WWI, because troops were too sick to fight. When the numbers were counted, [|influenza] killed more men than arms did, and may have contributed indirectly to the start of WWII. Some authorities believe that President Woodrow Wilson was so sick with flu during the negotiations to end WWI, that he failed to make the Treaty of Versailles powerful enough to help prevent WWII.27 [] ===|| HOME || CAUSE|| EFFECTS || TREATMENT || PREVENTION || CHOICE || NOTES || MLA||DEFINITIONS||=== Question: What did historians belive helped end WWI?
 * Influenza kills 20,000 to 40,000 Americans annually.134
 * The category of influenza and pneumonia was the sixth leading cause of death in the U.S. in 1995.135
 * Severe epidemics measured by excess mortality due to flu and pneumonia occurred in 1996-1997 and 1997-1998.136
 * About 20 percent of deaths occur in people without obvious underlying conditions.137
 * The 1998-1999 flu season caused about 50,000 deaths, due to a deadly viral strain Type A H3N2 virus.138
 * During epidemics, the rate of hospital admissions may increase by 100 percent to 170 percent.139
 * Over 300,000 people are hospitalized annually for influenza.140
 * Adults ages 19 to 65 account for 55 percent of influenza hospitalizations.141
 * As many as 24 million cases of flu require medical attention.142
 * 60 percent or more of flu patients never seek medical attention.143
 * Epidemic attack rates of up to 60 to 75 percent have been seen in school children, who have had less experience with flu and are more susceptible to infection than adults.144
 * Annual attack rates can exceed 30 percent in children, who are infectious longer than adults and act as vectors of disease, disseminating influenza to their families and communities.145
 * 25 percent of children under the age of five need medical care for acute respiratory disease during epidemics.146
 * 25 percent of children under the age of five need medical care for acute respiratory disease during epidemics.146