Today is the 25th World Asthma Day. The overall control rate of asthma in urban areas in China is 28.5%.

17.8% of mild asthma patients have had at least one acute attack in the past 12 months. People with a family history of asthma are 2 to 5 times more likely to develop asthma than people with no family history. Early identification of asthma and timely intervention can effectively prevent and reduce asthma attacks, however, the current control rate is not high enough to effectively prevent asthma attacks.