Microbiology is a domain that is concerned with the study of microorganisms. It includes the study of unicellular, acellular and multicellular microorganisms. Virology, parasitology, mycology and bacteriology are some sub-fields that fall under this domain. Virology focuses on the study of viruses, it deals with their structure, classification and the way they infect, their interaction with the host organism, the diseases caused by them and their treatment. Parasitology is the study of parasites, their host that harbors them and the relation between them. Mycology is a sub-field of microbiology that deals with the study of fungi, which includes their genetic and biochemical properties, the disease they cause as well as their use to humans. Bacteriology is a domain of biology that is concerned with the study of ecology, genetics, morphology and many other aspects of bacteria. It also deals with identifying, classifying and characterizing the bacterial species. This book aims to shed light on some of the unexplored aspects of microbiology and the recent researches in this field. The book presents researches and studies performed by experts across the globe. Researchers and students actively engaged in this field will find this book full of crucial and unexplored concepts.