The new version of the "Influenza Vaccination

hich vaccine is more effective? The updated composition of influenza vaccines in <a href="https://www.wteamsshop.com/">MLB Jerseys Shop</a> China in 2022-2023 includes trivalent inactivated influenza vaccine (IIV3), quadrivalent inactivated influenza vaccine (IIV4) and trivalent live attenuated influenza vaccine (LAIV3). IIV3 includes split vaccine and subunit vaccine, IIV4 is a split vaccine and LAIV3 is an attenuated vaccine. Trivalent inactivated vaccines include split vaccine and subunit vaccine, which can be used for ≥ 6 months of age, including 0.25ml and 0.5ml; quadrivalent vaccine is split vaccine, which can be used for ≥ 6 months of age vaccination, including 0.25 ml There are two dosage forms of ml and 0.5ml; the trivalent live attenuated vaccine is a freeze-dried preparation, used for people aged 3 to 17 years, and each dose is 0.2ml. The 0.25ml dosage form contains 7.5μg of each component hemagglutinin, which is suitable for infants aged 6-35 months; the 0.5ml dosage form contains 15μg of each component hemagglutinin, suitable for people over 36 months old. The 0.2ml dosage form contains A (H1N1) pdm09 and A (H3N2) two attenuated virus titers of not less than 6.9 lg EID50 (50% egg infectious dose, EID50), containing B (Victoria) attenuated virus titers not less than 6.9 lg. Below 6.4 lg EID50. For people who can be vaccinated with different types or different manufacturers of vaccine products, the recipients can choose to vaccinate any influenza vaccine voluntarily,<a href="https://www.zteamsshop.com/">NBA Jerseys Wholesale</a>  and there is no priority recommendation. How is the number of vaccinations determined? For IIV, children aged 6 months to 8 years old should receive 2 doses of influenza vaccine for the first time, with an interval of ≥4 weeks; children who have received 1 or more doses of influenza vaccine in 2021-2022 or before are recommended to receive 1 dose; Children 9 years and older and adults only need 1 dose. For LAIV, only 1 dose is given with or without influenza vaccine. Timing of vaccination: It is no longer emphasized to be vaccinated before the end of October. Influenza can be vaccinated at all stages throughout the year. In temperate regions, influenza is seasonal and high in winter and spring every year. In tropical regions, especially in Asia, the seasonality of influenza is highly diverse, ranging from semi-annual or annual cyclical epidemics to annual circulation. Since March 2020, influenza has shown a very low prevalence level in my country; the influenza activity in southern provinces has increased slowly from the end of 2020 to September 2021, and the northern provinces have only experienced short-term low-level epidemics from March to May 2021; since 2021 Around October of this year, the northern and southern provinces began to enter the autumn and winter high incidence season and reached the winter peak in early 2022, and gradually dropped to a low level in March 2022, mainly B (Victoria) series. Since May 2022, influenza activity in southern provinces of my country has continued to increase again, <a href="https://www.vteamsshop.com/boston-celtics/kyrie-irving.html">Kyrie Irving Jerseys</a> entering a high summer season, reaching the highest level in the same period in the past 5 years, with A(H3N2) subtype as the absolute dominant strain; influenza activity in northern provinces was low during the same period. Level. Usually 2 to 4 weeks after the flu vaccine, protective levels of antibodies are produced. The time and duration of the peak influenza activity varies from year to year in different parts of my country. In order to ensure that the inoculated recipients can obtain immune protection before the high influenza season, it is recommended that the vaccination work be arranged as soon as possible after the vaccine is popularized, and it is best to complete the immunization before the local influenza season. , vaccination units can provide immunization services throughout the epidemic season. In the same influenza season, those who have completed the whole course of vaccination according to the vaccination program do not need to be vaccinated repeatedly.