meld infection
A target hit by Meld Infection becomes infected by the nanite swarm. If an infected Mech is reduced to 0 SP, it becomes a Meld Behemoth under the control of the Meld. If an infected creature is reduced to 0 SP, it becomes a Meld Drone under the control of the Meld. Meld Infection does not go away unless removed. The only widely known method of cleansing a Meld Infection is fire, but that will burn and harm the infected.
Source: Salvage Union Workshop Manual, p. 288