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[填空题]According to the American Academy of Dermatology, an estimated 10 to 50 million people in this country have an allergic reaction to poison ivy each year. Poison ivy is often very difficult to spot. It closely resembles several other common garden plants, and can also blend in with other plants and weeds. But if you come into contact with it, you’ll soon know by the itchy, blistery rash that forms on your skin. Poison ivy is a red, itchy rash caused by the plant that bears its name. Many people get it when they are hiking or working in their garden and accidentally come into direct contact with the plant’s leaves, roots, or stems. The poison ivy rash often looks like red lines, and sometimes it forms blisters.
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About 85 percent of people are allergic to the urushiol in poison ivy, according to the American Academy of Dermatology. Only a tiny amount of this chemical—1 billionth of a gram—is enough to cause a rash in many people. Some people may boast that the
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The American Academy of Pediatrics
raised eyebrows recently when it released new guidelines saying that pacifiers
may protect against Sudden Infant Death Syndrome. The use of pacifiers for
sleeping infants has always been controversial, both in families and medical
circles-- the World Health Organization (WHO) says they should not be given to
breast-fed infants. Yet here was an authoritative body, representing US
pediatricians, suggesting pacifier use at sleep-time might actually save lives.
The Washington Post’s "New SIDS policy recommends pacifiers" was typical of the
headlines. What wasn’t reported was the fact that the announcement dismayed
experts in several counties--including Canada--who have found no justification
for such a recommendation. Some even worry the advice could increase the risk
for certain babies. Neither was i A. WHO. B. AAP. C. Dr. Peter Fleming. D. Dr. Fern Hauck.
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