Microbiology is a branch of science that refers to the study of microorganisms. These are living things that are too tiny to see with the naked eye. Microbiologists use genetics, microscopes and culturing to study these organisms.
Microbiology deals with fundamental research on the structure, function, uses and clinical aspects of microorganisms. These organisms include bacteria, viruses, algae and archaea, and they are found everywhere, including on the body and in food.
Microbiology comprises of bacteriology, virology, mycology, phycology, parasitology and various other branches of biology. However, in practical science it mostly involves bacteria and viruses, which are common causes of diseases and take part in food production.