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right now, autumn is getting stronger. as the seasons change, the temperature difference between day and night increases, and the influenza virus will gradually become active. today we will have a big fight against influenza, so that you can easily deal with this "autumn tiger"!

1. what is influenza?

influenza, also known as flu, is an acute respiratory infectious disease caused by influenza virus and is also one of the most common infectious diseases. influenza virus is prone to mutation and can cause seasonal epidemics every year, especially in crowded institutions such as schools and nursing homes. generally speaking, the influenza epidemic season in northern china is from october to march of the following year.

2. the harm of influenza cannot be ignored

according to the world health organization, influenza causes 3 million to 5 million severe cases and 290,000 to 650,000 deaths related to respiratory diseases each year worldwide. about 28,000 children under the age of 18 die from influenza-related lower respiratory tract infections each year.

3. how influenza is transmitted

influenza is mainly transmitted through droplets produced when an infected person talks, coughs, or sneezes. it can also be transmitted indirectly through contact with contaminated food, tableware, towels, etc. it can also be transmitted through aerosols in crowded and poorly ventilated environments. it is highly contagious.