"This is good, you don't need to get an injection, it doesn't hurt at all when you spray it in your nose." On July 14, Li Ying (pseudonym) who came to vaccinate told his mother at the Blue Light Lincoln Community Health Service Station in Longquan Street, Panlong District, Kunming City. On the same day, the freeze-dried live nasal spray influenza vaccine produced by Changchun Baike Biotechnology Co., Ltd. started its first batch of vaccination this year in Kunming. The vaccination price is about 323 yuan per unit.
nasal jet influenza vaccination.
Li Ying's mother said that the child is 5 years old this year and is in kindergarten. "I saw the monitoring data released by the National Influenza Center, saying that the positive rate of influenza virus testing in southern provinces continues to rise, and some provinces have entered the high-incidence period in summer. I just wanted to vaccinate my children with influenza vaccines. I just learned that there are already flu vaccines that do not need to be injected, and thinking that the children are more likely to accept, so I came to make an appointment for vaccination."
In response to this, Zhou E, a doctor at the health service station, said that for vaccinated children, this nasal spray vaccine does not need to be injected, and it will not feel pain, and is more likely to be accepted. In addition, this vaccine will not easily cause local redness, swelling and pain like being vaccinated.
nasal spray vaccine.
reporter learned that this vaccine is currently the only influenza vaccine in China that has been evaluated for its etiological protection effect. 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 both nostrils. Antibodies can be produced in 3 days to achieve the effect of preventing influenza, and it is non-invasive and painless throughout the whole process.
Experts said 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 humoral fluid and cells. The live attenuated nasal spray influenza vaccine can quickly stimulate the human body's triple immune response and defend against viruses in different parts: nasal mucosa administration, produce mucosal immunity (IgA antibodies), and form the first immune line in the nasal cavity; produce humoral immunity (IgG antibodies), and remove influenza viruses in humoral fluid; produce cellular immunity (T cells), and remove influenza viruses in cells. 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.
At present, the first batch of live attenuated nasal jet influenza vaccines for the 2022 influenza season have obtained batch issuance certificates and have been shipped nationwide to protect the prevention and control of influenza for children and adolescents during the national influenza season. Kunming can start vaccination appointments in late July, and citizens can choose to consult and make an appointment at the nearest community health service center.
Address related common sense:
Does people who have already suffered from influenza this year still need to be vaccinated?
Since people usually get influenza only have one of the influenza viruses and still have no immunity to other types of viruses, even if they have already had influenza, it is recommended to get influenza vaccine to prevent infection with the influenza virus.
When is it better to get influenza vaccination?
The influenza vaccines approved for sale in my country include inactivated influenza vaccines that require injection and live attenuated nasal spray influenza vaccines that do not require injection. Usually, after 2-4 weeks of inactivated influenza vaccine, antibodies with protection levels can be produced, and the antibody titer begins to decay after 6-8 months; when vaccinated with nasal spray influenza live-attenuated vaccine, it usually takes effect in 3 days, and the protection time is about 12 months. The time and duration of peak influenza activity in various parts of my country are different every year. In order to obtain protection before the high-influenza season, influenza vaccines should be vaccinated as soon as possible after they are launched in that year. It is best to complete the vaccination before the end of October. If not vaccinated by the end of October, vaccination can be done throughout the epidemic season. It is recommended that you can get vaccinated as soon as possible as long as the influenza vaccine is supplied this year.
Do you need to isolate if you have influenza? Can you keep going to school?
Influenza patients are the most contagious 24-48 hours after the onset of the disease. Students should not participate in group activities if they have influenza. After the body temperature returns to normal and the symptoms disappear for 48 hours, you need to go to a community hospital and have a doctor evaluated and found that you have recovered and issued a return to school certificate before you can resume classes.
Can children with repeated upper respiratory tract diseases be vaccinated with nasal spray flu?
The International Journal of Pediatrics published in January 2015 mentioned that nasal influenza can reduce the incidence of influenza in children with repeated respiratory infections by 52.7%. Inoculation with nasal jets can reduce fever disease by 21% and otitis media by 30%.
"Influenza viruses are prone to mutation. The World Health Organization proposes recommendations for global influenza vaccine strains based on the prediction results of the influenza virus epidemic strains in the next epidemic season. Vaccines from countries around the world produce influenza vaccines of that year based on the WHO prediction results. Therefore, the influenza virus strains targeted by influenza vaccines in different years may vary." Zheng Huizhen, chief expert in disease control of the Guangdong Preventive Medicine Association, suggested that annual influenza vaccination is the most effective means to prevent influenza and can significantly reduce the risk of influenza and serious complications for vaccinated people.
In addition to getting vaccinated, what other precautions do we need during the flu season?
1. Maintain good hygiene habits and a healthy lifestyle:
Washing hands frequently is one of the simplest and most important measures to prevent the spread of influenza.
is ventilated regularly to keep the indoor air circulating.
Strengthen exercise, enhance physical fitness, and improve body immunity.
2. The most direct prevention: avoid contact with people with flu-like symptoms.
Influenza patients are the main source of infection. If someone at home is infected with the flu, it is recommended to reduce contact with children and the elderly. When you have to contact, you can wear a mask to reduce the risk of infection.
Yunnan.com reporter Peng Xi Photography report
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