感染力
感染力（infectivity）為流行病學名詞，指病原體感染宿主的能力。病原體的感染力一般與其毒力呈正相關[1]。常用的感染力量化單位為ID50，即達到50%感染率所需的病原數量，其數值越低代表病原的感染力越高[2]，不同病源的ID50差異很大，如痢疾志賀氏桿菌的ID50為10，霍亂弧菌的ID50則為106至1011[3]。
參見
[編輯]參考文獻
[編輯]- ^ Stewart, AD; Logsdon, JM; Kelley, SE. An empirical study of the evolution of virulence under both horizontal and vertical transmission. Evolution. April 2005, 59 (4): 730–739. PMID 15926685. doi:10.1554/03-330.
- ^ Wessels, Michael R.; Gama, João Alves; Abby, Sophie S.; Vieira-Silva, Sara; Dionisio, Francisco; Rocha, Eduardo P. C. Immune Subversion and Quorum-Sensing Shape the Variation in Infectious Dose among Bacterial Pathogens. PLoS Pathogens. 2012, 8 (2): e1002503. ISSN 1553-7374. doi:10.1371/journal.ppat.1002503.
- ^ van Seventer, Jean Maguire; Hochberg, Natasha S. Principles of Infectious Diseases: Transmission, Diagnosis, Prevention, and Control: 22–39. 2017. doi:10.1016/B978-0-12-803678-5.00516-6.
- ^ Lesson 1: Introduction to Epidemiology / Section 9: Natural History and Spectrum of Disease. CDC. 2012 [2021-03-18]. （原始內容存檔於2021-03-18）.