Hygiene: The conditions and practices that help to maintain health and prevent the spread of diseases
Safety: The condition of being protected from or unlikely to cause danger, risk, or injury
Cross-contamination: The process by which bacteria or other microorganisms are unintentionally transferred from one substance or object to another, with harmful effect
Binary fission: The division of a single entity into two or more parts and the regeneration of those parts to separate entities
Sanitiser: A substance, or mixture of substances, designed to kill microorganisms and prevent their growth