It is reported that four cases of human infection with H7N9 avian influenza have been confirmed in Jiangsu Province. At present, the patient is in critical condition and is being rescued with all efforts. Spring itself is the season of high incidence of influenza, so we need to pay special attention to cold prevention and warmth, as the saying goes, spring covers autumn frozen, from winter to early spring, warm and cold at first, the temperature changes greatly, as the saying goes, "spring children face, three changes a day", take off cotton-padded clothes too early, once the temperature drops, it will be difficult to adapt, will reduce physical resistance. Bacteria attack the body by taking advantage of deficiency, which easily causes various respiratory diseases and infectious diseases in winter and spring. Ancient people's words are quite reasonable. At the same time, in spring, we must strengthen physical exercise, pay attention to supplementary nutrition, ensure adequate sleep and rest, in order to enhance resistance. The body is the capital of revolution. In the process of working, we should pay special attention to adjusting the state of life and work and keeping good health. First, we should pay attention to personal hygiene, keep personal cleanliness and wash hands frequently, maintain environmental hygiene and create a good living environment for ourselves. Second, pay attention to diet, diet is related to our health, scientific diet, help people to get light body, activate body function, reduce the burden of organs, so that people's health level to a higher level. Food is easy to spoil in spring, so don't eat stale food. Food that has been put away for several days should not be eaten. Keep food clean. Keep food fresh. Third, strengthen their own exercise, regular exercise can not only make the body get exercise, but also can adjust the body and mind, reduce stress. Running exercise is a common and effective exercise method. If you are busy at work and have less time, you can use the home treadmill to adjust your body.