Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
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Question: We describe the clinical characteristics and epidemiology of methicillin-resistant Staphylococcus aureus (MRSA) in children with cystic fibrosis (CF) from the U.S. CF center with the highest MRSA prevalence. Medical records of children with CF were retrospectively reviewed from 1997-2009. MRSA clinical isolates from 2007-2009 were analyzed by polymerase chain reaction and pulsed field gel electrophoresis. The prevalence of MRSA was 1% in 1997 and 49% in 2009. Fifty-five children (26%) had persistent MRSA infection. Sixty-eight percent of MRSA isolates were hospital-associated (HA) MRSA, of which 52% were pulsed-field type USA 100. Ninety-three percent of HA MRSA isolates were clindamycin resistant. Twelve children acquired MRSA before 1 year of age, 83% of whom were hospitalized prior to acquisition of MRSA. Ten of 11 sibling pairs carried indistinguishable MRSA strains. Children with persistent MRSA were hospitalized more often (P=.01), required inhaled medications more frequently (P=.01), and had higher rates of Pseudomonas aeruginosa coinfection (P<.001). MRSA prevalence in children with CF is increasing, and most children are infected with HA MRSA. Exposure to health care facilities and gastrointestinal surgeries may facilitate early acquisition of MRSA. Siblings carry indistinguishable MRSA strains, indicating household transmission of MRSA. Children with persistent MRSA had worse pulmonary morbidity. Coinfection with MRSA and P aeruginosa is likely associated with further increased pulmonary morbidity.

Answer: What is MRSA?


Question: The United States Exploring Expedition was an exploring and surveying expedition of the Pacific Ocean and surrounding lands conducted by the United States from 1838 to 1842.

Answer: On what date did United States Exploring Expedition end?


Question: #United States Capitol It serves as the seat of government for the US Congress. It is located in Washington, D. C., on top of Capitol Hill at the eastern end of the National Mall. Officially, both the east and west sides of the Capitol are referred to as "fronts". Historically, however, the east front was initially the side of the building intended for the arrival of visitors and famous guests. Phone: (202) 225-6827 Official website: www.aoc.gov Hours: Monday-Saturday: 9:00 a.m.-4:30 p.m. #International Spy Museum It is a privately owned museum dedicated to the field of espionage located in Washington. D. C., The museum was built by The Malrite Company at a cost of US $ 40 million. Despite being one of the few museums in Washington that charges admission fees, it has been popular since its opening in July 2002. Phone: (202) 393-7798 Official website: www.spymuseum.org Hours: Monday-Sunday: 9:30 a.m.-6:00 p.m. #National Museum of Natural History It is a natural history museum administered by the Smithsonian Institution, located on the National Mall in Washington, D.C., Admission is free and the museum is open 364 days a year. The museum's collections total over 125 million specimens of plants, animals, fossils, minerals, rocks, meteorites ,and human cultural artifacts, making it the largest such museum anywhere. It is the second most popular of all of the Smithsonian museums and is also home to about 185 professional natural history scientists--the largest group of scientists dedicated to the study of the natural and cultural history in the world. Phone: (202) 633-1000 Official website: www.mnh.si.edu #Jefferson Memorial It is a presidential memorial in Washington, D. C., dedicated to Thomas Jefferson, an American Founding Father and the third president of the United States. The neoclassical building was designed by John Russell Pope. It was built by Philadelphia contractor John Mc. Shain. Construction began in 1939, the building was completed in 1942, and the bronze statue of Jefferson was added in 1947. When completed, the memorial occupied one of the last significant sites left in the city. Phone: (202) 426-6821 Official website: www.mps.gov/thje

Answer:
Which admission is free?