Haemorrhagic fever with renal syndrome (HFRS) is a worldwide epidemic plaguing over thirty nations. This disease has spread across 26 provinces, cities and autonomous regions of China with an annual onsets number ...Haemorrhagic fever with renal syndrome (HFRS) is a worldwide epidemic plaguing over thirty nations. This disease has spread across 26 provinces, cities and autonomous regions of China with an annual onsets number of more than a hundred thousand and a mortality rate of 5% to 15%, accounting for over 80% of cases in the world, and threatening the safety and health of Chinese people. 1 Analysis of serum samples over recent years indicates that the plagued areas are expanding. Instead of a single type Ⅰ or Ⅱ strain, each area now has a combination with one type predominant. 2 These demographic changes revealed a shortcoming of the monovalent vaccine in use, urging China to develop a purified bivalent vaccine based on monovalent one. This research on clinical observation and immunization effects led to a purified bivalent vaccine manufactured by Changchun Institute of Biological Products, China from primary cultured hamster kidney cells.展开更多
文摘Haemorrhagic fever with renal syndrome (HFRS) is a worldwide epidemic plaguing over thirty nations. This disease has spread across 26 provinces, cities and autonomous regions of China with an annual onsets number of more than a hundred thousand and a mortality rate of 5% to 15%, accounting for over 80% of cases in the world, and threatening the safety and health of Chinese people. 1 Analysis of serum samples over recent years indicates that the plagued areas are expanding. Instead of a single type Ⅰ or Ⅱ strain, each area now has a combination with one type predominant. 2 These demographic changes revealed a shortcoming of the monovalent vaccine in use, urging China to develop a purified bivalent vaccine based on monovalent one. This research on clinical observation and immunization effects led to a purified bivalent vaccine manufactured by Changchun Institute of Biological Products, China from primary cultured hamster kidney cells.