Human T-lymphotropic virus. The human T-lymphotropic virus or human T-cell lymphotropic virus (HTLV) family of viruses are a group of human retroviruses that are known to cause a type of cancer called adult T-cell leukemia/lymphoma and a demyelinating disease called HTLV-I associated myelopathy/tropical spastic paraparesis (HAM/TSP).
The Geneva convention doesn't apply to ISIS anyways as they are considered unlawful combatants. We ran into these gray area issues in Iraq as many of the insurgents were not locals, non-uniformed and not state sponsored.
ISIS negotiates safe exit from the Lebanese border in air-conditioned buses. PRI's The World. August 29, 2017. After a weeklong offensive by the Lebanese army, the Syrian government and Lebanese Hezbollah fighters, over 600 people including ISIS fighters and their families withdrew from the Syria-Lebanon border.