How to prevent influenza warning in many southern provinces? What is the reason for the high incidence of influenza?

Preventive measures: First, vaccination. Vaccination against influenza every year is the most effective means to prevent influenza, which can significantly reduce the risk of influenza and serious complications; Second, do a good job in daily protective measures, including maintaining good respiratory hygiene habits, washing hands frequently, avoiding close contact with patients with flu symptoms, and frequent ventilation.

There are many reasons. First, there is indeed a summer flu peak in Guangdong. Second, in the past two years, based on the prevention and control of COVID-19, most citizens' hygiene habits have been improved, and they wear masks when they go out, which has a good preventive effect on respiratory infectious diseases, but in the past two years, a large number of susceptible people have also accumulated; Thirdly, the main epidemic strain H3N2 has the characteristics of high epidemic intensity, high infection rate and rapid mutation frequency.