Generally speaking, there is a saying that the first generation and the second generation can only be generated by bacterial reproduction, but novel coronavirus belongs to the beta coronavirus, so there is no saying that novel coronavirus has the first generation, the second generation, the third generation and the fourth generation. Coronavirus is a common respiratory virus, which can cause respiratory infection, either upper respiratory infection or lower respiratory infection.
There are five main virus strains that infect novel coronavirus, namely α, β, γ, δ and ω. There are some unusual mutants, such as Hita mutant, Hetai mutant and Ipsron mutant.
Protection guide
1. Wash your hands frequently. Proper hand washing is one of the most effective measures to prevent diarrhea and respiratory tract infection. Wash your hands immediately after contact with respiratory secretions, use soap or hand sanitizer and tap water, and wipe your hands with disposable paper towels or clean towels. Avoid touching your mouth, eyes and nose with unclean hands.
2, often ventilated. When the indoor temperature is suitable, try to use natural ventilation, and open the window at least three times a day for 20-30 minutes each time. When the outdoor air quality is poor, the number and time of air exchange should be reduced appropriately.
3. charge less. It is a magic weapon to control the spread of the epidemic by not going to the epidemic area unnecessarily and reducing the gathering. Always remind yourself and your family to minimize activities in crowded places, wear masks all the time when going out for activities, minimize the number of people having dinner and shorten the dinner time.