Lyophilized inactivated Japanese encephalitis vaccine
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 天津嘉诚顺隆商贸有限公司
- Publication Date
- 2012-08-15
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Abstract
Description
technical field
[0001] The invention relates to a novel freeze-dried and inactivated Japanese encephalitis whole virus vaccine. Background technique
[0002] The pathogen of epidemic encephalitis B (JE) was discovered in Japan in 1934, so it is also called Japanese Encephalitis. Japanese encephalitis virus belongs to the flavivirus genus of Togaviridae. The spherical virus particles have capsules outside, and are sensitive to temperature, ether and other organic solvents. The Japanese encephalitis virus is transmitted by mosquitoes and is prevalent in summer and autumn. There are about 50,000 cases of the disease every year in the world, and the main endemic areas are countries such as southern my country, Southeast Asia, and tropical regions. WHO recommends that all JE-endemic countries should implement JE vaccine immunization.
[0003] JE vaccines currently used internationally are mainly inactivated whole virus JE vaccines and live attenuated JE vaccines. Maintaining g...