In a factory/manufacturing setting, do we need to shut down for deep cleaning once a positive case arises? Can we deep clean without shutting down?

This varies case by case. It depends on the worker in terms of where they work, which areas they came in contact with, etc. From the webinar, the MHO mentioned that it is good practice to clean the spaces the worker had worked into limit any further spread. This may mean only a certain area of the plant or an entire floor for example. Follow the direction of public health as well, to make this determination.