While I cannot directly provide you with specific studies, in general an effective method of isolating viruses from a patient is by culturing the subject's tissues or biological samples (blood, stool, saliva) to amplify viral particles enough for them to be visible and safely harbored without risk of further spread. These methods require appropriate safety precautions and adherence to protocols. Once a new virus is isolated through this process post its molecular pathway analysis aids reliable testing kits production which can help prevent rapid transmission during pandemic situations like COVID-19.