主页 > 医药科学 >
【科普】过敏性疾病，一年四季常相伴
POSTED: 11:46 a.m. EDT, March 23, 2007
By David E. Williams
***
http://www.***.com/2007/HEALTH/03/23/allergies.outlook/index.html
(***) -- A late freeze put a snowy exclamation point on a fairly mild winter for much of the United States, and experts say it's hard to predict what this weird weather means for allergy sufferers.
It's certain allergy season is on its way, though, bringing sneezing, wheezing, coughing, runny noses, itchy eyes and headaches with it.
The allergy season is really several seasons. Trees start scattering their pollen in early spring, followed by grasses, and then ragweed kicks in during the summer and runs through fall.
Then there's mold, which can be a year-round problem. (Gallery: What you need to know)
But making allergy season really unpredictable is the role of weather, said Mike Tringale with the Asthma and Allergy Foundation of America.
"It's a hard call to make," he said. "It's not just pollination, but what the wind and the rains and the other weather patterns do to that pollen; whether it washes it away or blows it 500 miles to the next town or city is a very difficult thing to project."
Dr. Charles Feldman, an allergist with Columbia University's Department of Pediatrics, said he had an unusually large number of patients complain about hay fever over the winter.
"There were people complaining this winter of itchy, watery eyes, which is something you don't see until April or May," Feldman said.
Feldman said complaints dropped after the January freeze that blanketed the New York City area with snow and ice. (Map: What's the pollen count for your area?)
"Things become very dormant with the cold weather," he said. The cold snap could either delay the start of the allergy season, or give it a head start, depending on how close the trees are to releasing pollen.
Dr. Jeffrey Adelglass measures the pollen count for the Dallas, Texas, area. He said unseasonably warm temperatures led to relatively high levels of cedar and elm pollen.
Taking medications before the pollen onslaught can help people get ready for the allergy season, Tringale said. Other preventive measures don't involve drugs.
"If you have a choice to plan an outdoor event versus an indoor event, people with spring allergies, who have tree pollen allergies, would be better off choosing indoor activities during the peak pollen season," he said.
About 18.6 million adults and 6.7 million children have hay fever, according to 2004 reports by the National Center for Health Statistics.
An allergic reaction happens when the body identifies a normally harmless substance such as pollen as an invading germ. The immune system produces histamine to fight off the intruder and that chemical causes the symptoms that make people miserable.
Antihistamines and other treatments can reduce the symptoms -- but there is no cure.
"There is no pill, shot or surgery that's going to take away allergies completely," Adelglass said. "What we're trying to do is control them so that people's lives can be very normal and do-able with an occasional problem with allergies." 本人已认领该文编译，48小时后若未提交译文，请其他战友自由认领。 Predicting allergy season eludes experts
POSTED: 11:46 a.m. EDT, March 23, 2007
By David E. Williams
专家也难预测过敏季节，
http://www.***.com/2007/HEALTH/03/23/allergies.outlook/index.html
(***) -- A late freeze put a snowy exclamation point on a fairly mild winter for much of the United States, and experts say it's hard to predict what this weird weather means for allergy sufferers.
最近，在美国一场寒流给温和的暖冬打上了一个雪白的惊叹号。专家说，这种古怪天气对过敏患者来说是好是坏诚难预测。
It's certain allergy season is on its way, though, bringing sneezing, wheezing, coughing, runny noses, itchy eyes and headaches with it.
可以明确的是，过敏季节来临的脚步没有停下，给人们带来了各种症状：打喷嚏、流鼻涕、呼吸困难、咳嗽、眼睛痒和头痛等。
The allergy season is really several seasons. Trees start scattering their pollen in early spring, followed by grasses, and then ragweed kicks in during the summer and runs through fall.
事实上，多个季节都是过敏季节：早春，树木开始散播花粉，接着是小草；到夏天，豚草接过了班，而且一直走完整个秋天。
Then there's mold, which can be a year-round problem. (Gallery: What you need to know)
而且还有霉菌，这可是一年四季都有的问题。
But making allergy season really unpredictable is the role of weather, said Mike Tringale with the Asthma and Allergy Foundation of America.
阅读本文的人还阅读：
作者:admin@医学,生命科学 2011-03-21 17:11
医学,生命科学网