Flow cytometry is a powerful technique for the rapid analysis of single cells in a mixture. In microbiology, flow cytometry permits the reliable and rapid detection of single or multiple microbes and can provide information about their distribution within cell populations. Flow cytometry may also lead to a faster means of viability counting of microorganisms while, at the same time, enabling a better understanding of all bacterial cells within a given population. Specially adapted commercial cytometers for microbial detection are being developed. In this text, renowned contributors have...