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Under the U.S. Constitution, the officeholder leads the executive branch of the federal government and is the commander-in-chief of the United States Armed Forces. [3] The first president, George Washington, won a unanimous vote of the Electoral College. [4] The incumbent president is Donald Trump, who assumed office on January 20, 2025.
31st president Herbert Hoover (died October 20, 1964) 19 years, 191 days after 32nd president Franklin D. Roosevelt (died April 12, 1945) 333 days after 35th president John F. Kennedy (died November 22, 1963) 33rd president Harry S. Truman (died December 26, 1972) 9 years, 34 days after 35th president John F. Kennedy (died November 22, 1963)
Presidents of the United States who died in office William Henry Harrison April 4, 1841: Zachary Taylor July 9, 1850: Abraham Lincoln April 15, 1865: James A. Garfield September 19, 1881: William McKinley September 14, 1901: Warren G. Harding August 2, 1923: Franklin D. Roosevelt April 12, 1945: John F. Kennedy November 22, 1963
The length of a full four-year term of office for a president of the United States usually amounts to 1,461 days (three common years of 365 days plus one leap year of 366 days). The listed number of days is calculated as the difference between dates , which counts the number of calendar days except the first day ( day zero ).
His interest in the disease stemmed from the death of a 9-month-old infant from rotavirus-caused dehydration while under his care as a pediatric resident in 1979. [10] [13] Along with his colleagues Fred Clark and Stanley Plotkin, Offit invented RotaTeq, [14] a pentavalent rotavirus vaccine manufactured by Merck & Co.
Since 1990, when the vaccine was introduced as a routine vaccination in children, rates of acute Hepatitis B has decreased in the United States by 82%. This vaccine is given as a series of shots, the first dose is given at birth, the second between 1 and 2 months, and the third, and possibly fourth, between 6 and 18 months.
NCVIA's purpose was to eliminate the potential financial liability of vaccine manufacturers due to vaccine injury claims [1] to ensure a stable market supply of vaccines, and to provide cost-effective arbitration for vaccine injury claims. [2] Under the NCVIA, the National Vaccine Injury Compensation Program (NVICP) was created to provide a ...
His Personal Memoirs is considered by historians to be among the best by a U.S. president. Many presidents of the United States have written autobiographies about their presidencies and/or (some periods of) their life before their time in office. Some 19th-century U.S. presidents who wrote autobiographies are James Buchanan and Ulysses S. Grant ...