Doctors vaccinate children with live attenuated nasal spray flu.
Kunming Information Port News (Kunming Daily reporter Zhang Xiaoli) "Come on, raise your head, don't be afraid, it doesn't hurt." On July 14, at the Blue Light Lincoln Community Health Service Station in Longquan Street, Panlong District, vaccination doctor Zhou E used a special nasal sprayer to spray the vaccine into the child's two nostrils, and completed the vaccination without realizing it.
At present, the influenza vaccine approved by my country includes inactivated influenza vaccines that require injection, and live attenuated nasal spray influenza vaccines that do not require injection. The live attenuated vaccine for freeze-dried nasal spray influenza that Zhou E vaccinated her child was produced by Changchun Baike Biotechnology Co., Ltd. The price of one is 323 yuan. It is suitable for people aged 3 to 17 years old. It is vaccinated once a year, and 0.1 ml of it is sprayed into each of the two nostrils. The antibodies can be produced in 3 days to achieve the effect of preventing influenza.
The high incidence of influenza usually occurs in winter and spring, but in fact, in the humid and hot southern provinces, influenza will also occur in summer. Monitoring data from the National Influenza Center shows that the positive rate of influenza virus testing in southern provinces continues to rise, and some provinces will also enter the high-influenza period in summer. At present, the first batch of live attenuated nasal jet influenza vaccines for the 2022 influenza season have received batch issuance certificates, and shipment reservations have been opened nationwide.
At present, Kunming has begun to make an appointment for live attenuated nasal spray influenza. "This nasal spray vaccine does not need to be injected, it will not feel pain, will not cause local redness and swelling, and will be more easily accepted by children." Zhou E said.
It is understood that after the influenza virus invades the human body, it is widely present in mucosal areas such as the nasal cavity and respiratory tract, as well as in body fluids and cells. After receiving the live attenuated nasal spray influenza vaccine, the human body's triple immune response is stimulated through cellular immunity, mucosal immunity and humoral immunity, and defend against viruses in different parts of the body. In addition to being able to effectively resist the vaccine strain virus, the vaccine can also provide cross-immunization to other subtypes of influenza viruses. Relevant studies show that the live attenuated nasal spray influenza vaccination usually takes effect in three days and the protection time lasts for more than 12 months. Citizens who want to receive the live attenuated nasal jet influenza can consult and make an appointment at the nearby community health service center.
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