单词：biochemistry of serious allergic reactions
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This business update is brought to you by Verizon Online DSL. Rachel Lee: Genentech has halted / test of a peanut-allergy treatment after two kids suffered serious reactions. CNN's Susan Lisovicz has
商业报道2006年
By Mario Ritter HEALTH REPORT - May 1, 2002: Allergies This is the VOA Special English Health Report. Many different substances and organisms in the environment affect our health. An allergy is an unu
健康与环境
This is the VOA Special English Health Report. Heparin is a blood-thinning medicine made from pig intestines, which often come from small farms in China. The drug is often used to prevent blockages during kidney dialysis treatment and different opera
VOA慢速英语2008年（四）月
This is the VOA Special English Health Report. An allergy is an unusually strong reaction to a substance. Many things can cause allergies. The most common cause is pollen. Trees usually produce pollen in the spring, grasses in the summer and weeds in
VOA慢速英语2007年（七）月
HEALTH REPORT - Sometimes What Feels Like an Infection May Be an Allergy By Mario Ritter Broadcast: Wednesday, July 06, 2005 I'm Gwen Outen with the VOA Special English Health Report. Pollen from flow
健康与经济
LOS ANGELES, June 20 (Xinhua) -- About 8 percent of children, or nearly 6 million in the U.S., have a food allergy, a much higher rate than previously estimated, a new study suggests. Not only is this estimate higher than some previous research has r
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