《千重臺》中的病毒：從生物醫學看身動力

The Virus in A Thousand Plateaus: Approaching Affect from the Perspective of Biomedicine

德勒茲與瓜達希在《千重臺》中以病毒所牽動的異質連結作為例子，來說明根莖異於樹狀結構的運作機制。但一般對病毒感染的論述方式深受軍事隱喻的影響，傾向把病毒視為單方面入侵人體的敵人，免疫系統則是確保主權完整的防線，這種論述框架很難轉換為有創造性的異質連結。本文將爬梳生物醫學相關研究的論點，舉出例證來說明，病毒感染不只是單向的入侵，而是身動力交相作用的結果。而免疫系統也不需是證明自我界限何在的防線，而是人體細胞與病毒之間不斷解軫域化與再軫域化的一重平台。當敵我對抗的意象被解構後，我們方能循線進入病毒所織出的生命網絡，看到多重的異質連結。

Gilles Deleuze and Felix Guattari refer to the conditions of viral infection in A Thousand Plateaus as an example of how alliances of heterogeneous elements are effectuated. However, as popular descriptions of viral infection are so captivated by military metaphors which preach confrontation between the human self and the viral other, an alternative model of viral infection has to be formulated so that the creative involution facilitated by viral infection can be appreciated. Following Deleuzean lines, the present article argues that viral infection testifies to the circulation of affects within machinic assemblages instead of coming about as a result of unilateral imposition. There is even a certain motivation to viral infection on the part of the human body. It is also argued that rather than serving as the guarantee of a certain biological self by waging battles against foreign antigens, the immune system defines a territory which is engaged in an endless process of deterritorialization and reterritorialization.