Systems and methods of testing a fluid sample are provided. A method can include controlling an orientation of a loader including a sample holder configured to hold a sample vessel to correspond to a first predetermined tilt angle. The method can include controlling an articulator to transfer the fluid sample from the sample vessel to at least one well of a plurality of wells of a multiwell plate positioned on a plate deck within the enclosure. The method can include controlling the articulator to move the multiwell plate to a hotel incubator within the enclosure. The method can include applying a bacteriophage to the fluid sample. The method can include controlling the articulator to move the multiwell plate from the hotel incubator to a testing system within the enclosure after a predetermined reaction time period. The method can include receiving output data from the testing system.