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An mRNA vaccine carries an mRNA sequence that is coded for a viral-specific antigen. Once delivered into target cells, the antigen will be recognized by the immune system to generate responses to the virus. Compared with traditional vaccines, the development and production cycle of an mRNA vaccine is often shorter.
An area in Changsha, the capital of Hunan province, is flooded on Tuesday as a result of recent downpours. [Photo/China News Service]
An exciting part of Chinese consumerism is the rise of discretionary spending, according to Jeffrey Towson, managing partner of Towson Capital. He pointed out that the increase in expenditure on discretionary products in China annually is forecast to exceed 7 percent till 2020. Within this same period, the growth of spending on "semi-necessities" annually should hit 6 to 7 percent.
An independent apartment has become one of the preconditions for marriage, with about 57 percent of single women saying it's a requirement, according to a survey jointly conducted by dating website Jiayuan.com and China's biggest real estate broker Lianjia.
An employee works on the production line of a generator manufacturing company in Weifang, Shandong province. [Photo by Wang Jilin/For China Daily]
来源：资阳报