This is after the six provinces of Anhui, Fujian, Guangxi, Shandong, Heilongjiang and Yunnan started administering the region's first quadrivalent meningococcal meningococcal vaccine on July 28. Sichuan, Hubei, Hunan and Guangdong have officially started administering the first q

2024/12/1721:55:32 regimen 1196

cover news reporter Zhou Jiayi

html On August 25, my country’s first independently developed quadrivalent meningococcal polysaccharide conjugate vaccine was administered at the Fangcao Community Health Service Center in the High-tech Zone.

This is after the six provinces of Anhui, Fujian, Guangxi, Shandong, Heilongjiang and Yunnan started administering the region's first quadrivalent meningococcal meningococcal vaccine on July 28. Sichuan, Hubei, Hunan and Guangdong have officially started administering the first q - DayDayNews

It is understood that this vaccine is my country's first and the world's third quadrivalent meningococcal polysaccharide conjugate vaccine that can be used for infants under 6 months of age. This is after the six provinces of Anhui, Fujian, Guangxi, Shandong, Heilongjiang and Yunnan started administering the region's first quadrivalent meningococcal meningococcal vaccine on July 28. Sichuan, Hubei, Hunan and Guangdong have officially started administering the first quadrivalent meningococcal meningococcal vaccine in China. Brain polysaccharide conjugate vaccine. So far, babies in 11 provinces in my country can enjoy the protection of domestically produced high-end meningococcal vaccines.

Yang Taoyi, a pediatrician at Chengdu Third People's Hospital, said that epidemic cerebrospinal meningitis (meningococcal meningitis) is a serious infectious disease caused by Neisseria meningitidis. The bacterium spreads through the respiratory tract, can invade the blood circulation from the nasopharynx, and finally locates in the meninges and spinal cord membranes, forming purulent inflammation.

The onset of meningitis is uncertain, and the initial symptoms may be atypical, similar to a cold or flu. Meningococcal disease progresses rapidly and has a dangerous outcome. If not treated in time, it can be life-threatening within 24 hours. Even patients who survive treatment may have serious long-term sequelae such as mental retardation, hearing loss, and amputation.

The incubation period for Neisseria meningitidis averages 4 days, and common symptoms are stiff neck, high fever, sensitivity to light, confusion, headache and vomiting. Without treatment, 50% of patients will die, and even if diagnosed early and appropriate treatment initiated, 5% to 10% of patients will die, usually within 24 to 48 hours after the onset of symptoms. 10% to 20% of survivors will have brain damage, hearing loss or learning disabilities. The position paper on meningococcal released by the WHO mentioned that infants and young children aged 3 months to 12 months have the highest incidence rate. Once a meningococcal disease epidemic occurs, older children and young adults will have the highest incidence of meningococcal disease. The incidence rate may increase.

There are 12 main serogroups of meningococci, and the main 6 groups that cause human diseases are group A, group B, group C, group X, group Y and group W. Up to now, the available meningococcal vaccines on the market include group A polysaccharide, AC polysaccharide, AC polysaccharide conjugate, and ACYW135 polysaccharide. Group A polysaccharide vaccine can prevent group A meningitis; AC polysaccharide/polysaccharide conjugate is commonly referred to as bivalent. , can prevent meningitis groups A and C; ACYW135 polysaccharide/polysaccharide combination is tetravalent, and can prevent meningitis groups A, C, Y, and W135. The launch of the quadrivalent meningococcal polysaccharide conjugate vaccine will bring more comprehensive and high-quality protection to Chinese children.

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