<s>[INST] <<SYS>> This is a medical question of type : frequency <</SYS>> How many people are affected by allergic asthma ? [/INST] Approximately 235 million people worldwide have asthma. In the United States, the condition affects an estimated 8 percent of the population. In nearly 90 percent of children and 50 percent of adults with asthma, the condition is classified as allergic asthma. </s>