Despite assumptions that peanut, egg and other allergies are becoming more common in the U.S., experts say they just don't know. One challenge: Symptoms can be misinterpreted and diagnosis isn't easy.
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People await a decision outside the Supreme Court on June 27. The court struck down a Texas law restricting abortions.
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In a cluster of glowing human stem cells, one cell divides. The cell membrane is shown in purple, while DNA in the dividing nucleus is blue. The white fibers linking the nucleus are spindles, which aid in cell division.
Allen Institute for Cell Science
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Juana Rivera (left) speaks with agent Fabrizzio Russi about buying insurance through the Affordable Care Act in Miami in 2014.
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Seema Verma, now in line to head the Centers for Medicare & Medicaid Services, arrives at Trump Tower in New York City on Nov. 22.
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Rep. Diana DeGette, D-Colo., and Rep. Fred Upton (right), R-Mich., who have spearheaded the 21st Century Cures Act, speak after a 2015 House of Representatives vote in its favor.
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Rep. Tom Price has introduced his own alternative to the Affordable Care Act four times. The legislation provides an idea of how he might lead the Department of Health And Human Services.
Andrew Harrer/Bloomberg via Getty Images
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Anti-Zika advice applied to a wall in front of a housing project in the Puerta de Tierras section of San Juan, Puerto Rico. This public health message was part of an island-wide effort to stem the spread of Zika.
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Rep. Tom Price (center) appeared in early 2016 before the House Rules Committee, when he sponsored legislation that would repeal President Obama's signature health care law.
J. Scott Applewhite/AP
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This month, the last four functioning hospitals in eastern Aleppo, including the one pictured above, were hit by airstrikes and ceased operations.
Courtesy of Union of Medical and Relief Organizations
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Courtesy of Union of Medical and Relief Organizations