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1988年,全世界脊髓灰质炎(脊灰)发病约35万例。截至2005年,由于全球预防接种工作的开展,脊灰野病毒(Wild Poliovirus,WPV)Ⅰ型和Ⅲ型(WPVⅠ和WPVⅢ)已经在多数国家(除阿富汗、印度、尼日利亚、巴基斯坦四国外)被消灭。1999年后,全球无WPVⅡ型(WPVⅡ)病例的报告。本报告总结了2009年全球消灭WPV工作进展。1全球WPV发病概况2009年,报告WPV感染者1606例,而2008年为1651例。WPVⅢ发病数从2008年的675例增加到2009年的1124例,上升67%。而WPVⅠ病例数从2008年976例减少到
In 1988, there were about 350,000 cases of poliomyelitis (polio) worldwide. As of 2005, wild poliovirus (WPV) type I and III (WPV I and WPV III) have been eliminated in most countries (except Afghanistan, India, Nigeria and Pakistan) due to the global vaccination efforts. Since 1999, there are no reports of WPV Ⅱ cases in the world. This report summarizes the progress of global WPP elimination in 2009. 1 Global incidence of WPV In 2009, 1606 cases of WPV were reported, compared with 1651 cases in 2008. The incidence of WPV III increased from 675 cases in 2008 to 1,124 cases in 2009, an increase of 67%. The number of cases of WPV I decreased from 976 in 2008 to