A device and method for treating disease involves inserting a scope into a patient's body, the scope having a light source, a camera and a cartridge connected thereto. The cartridge has two chambers separated by membrane, a first one of the chambers containing a virus, and a second one of the chambers being connected to a plurality of microneedles configured for extending into the patient's tissue upon insertion of the scope. Cells from the patient are removed via suction from the microneedles and are deposited in the second chambers. The membrane is then broken to mix the virus with the cells to infect the cells, and the infected cells are then transported back into the patient to treat the disease.