he term for a healthy animal susceptible to disease that is placed in a room with other animals to detect disease is: Sentinel Transgenic SCID Conventional

The term you're looking for is Sentinel. Sentinels are healthy animals that are placed in a population of animals to monitor for the presence of disease. They act as indicators of infection or disease within the group because they can show signs of illness if the pathogens are present. This strategy is commonly used in various fields of research, veterinary medicine, and animal husbandry to ensure the health and safety of animal populations.

Transgenic refers to animals that have been genetically modified, SCID (Severe Combined Immunodeficiency) refers to animals lacking an immune response, and Conventional typically refers to animals raised under standard husbandry practices without specific pathogen-free (SPF) status. Thus, the most accurate term for the scenario described is "Sentinel."