Cameras (security) for the following observations: ⚬ Density: Number of people tracked by a camera;
⚬ Social Distancing: Camera proximity app will notify if people are less than 2 m apart;
⚬ Coughing Behavior: Number of coughs, open coughs, hand coughs, and arm coughs result in different levels of contamination;
⚬ Touching Behavior: Cameras can detect if people touch the contaminated surfaces, doorknobs, or their faces;
⚬ Potential Detection: Automatic detection of people’s activities, for example, cleaning activities being carried out in a room, or wearing a face mask.