1. What is influenza Answer: An acute infectious disease that is mainly transmitted through the respiratory tract, mainly manifested as symptoms such as high fever, headache, fatigue, joint pain, etc., and Catal symptoms are optional.

1.What is influenza

Answer: An acute infectious disease mainly transmitted through the respiratory tract, mainly manifested as symptoms such as high fever, headache, fatigue, joint pain, etc., and Catal symptoms are optional.

2. Is the flu lethal?

Answer: In recent years, 3 million to 5 million severe cases have been created every year, as well as 290,000 to 650,000 deaths. The Spanish flu pandemic of 1918 caused 1,000,000,000 infections and 50,000,000 deaths (conservatively estimated 20,000,000).

3.How to prevent influenza?

Answer: Wear a mask, open windows for ventilation, eat reasonably, maintain exercise, and get influenza vaccination.

4. Is the flu vaccine useful? Is it harmful? Is it expensive?

Answer: It is useful and harmless, depending on the value of your life.

5. How many influenza vaccines are there this year?

Answer: Trivalent influenza virus lysis vaccine ( Hualan , Changchun, Yalifeng, Guoguang), trivalent influenza virus subunit vaccine (Zhongyi Anke), tetravalent influenza virus lysis vaccine (Hualan).

6. Is there any imported one?

Answer: No, the imported Pasteur influenza vaccine is also produced in Shenzhen, and it has not been sold in the mainland market due to some internal reasons.

7. Then which domestic vaccine is the best?

Answer: Hualan's quadrivalent vaccine is the most comprehensive protection, and the other three vaccines are checked. But Hualan quadrivalent seedlings only have adult dosage form (0.5ml), and you probably won’t get it either. In addition, please ask who can collect the advertising fee for me after going back.