"Poor personal hygiene" is the main and biggest cause of foodborne illness. Personal hygiene is very basic to every individual. It reflects how we bring ourselves and take care of ourselves. It would be a great embarrassment to other people if you smell unpleasant, most especially towards your co-workers and employers.
The biggest cause of foodborne illness is poor personal hygiene. This can lead to the transmission of different foodborne illnesses where people don't really have any control over whether it will be the case and happen or if it won't be the case and won't happen.
