This is SCIENCE IN THE又忘了，哈哈 NEWS in VOA Special English. I'm Shirley Griffith.
And I'm Bob Doughty. Spring has returned to the United States. The sky is blue, the grass美音是梅花音 is green and many plants are flowering. Spring can be a beautiful time of year. But it is especially troublesome for people with asthma. High pollen levels can keep asthma sufferers from enjoying spring flowers and the weather.
May is Asthma Awareness Month感觉这n有点off是不是，象起来象monk前一段？ in the United States. And May first is World Asthma Day. The Global Initiative for Asthma, or GINA, organizes the event every year. GINA is a joint effort of the World Health Organization and the National Heart, Lung and Blood Institute of America's National Institutes of Health.
