Lyme disease, also called Lyme borreliosis, is an emerging infectious disease. It is caused by Borrelia burgdorferi (Bb) bacteria belonging to the genus Borrelia. This book contains in-depth knowledge about the molecular biology of the disease agent i.e. the Borrelia burgdorferi bacteria. It has been written by professionals of this field and has been compiled according to the requirements of researchers, advanced students of biology, molecular biology, and molecular genetics of the microorganism. Infectious disease experts and people in other areas interested in learning more about Lyme borreliosis will find this book beneficial. Some of the topics discussed in the book are the molecular biology of the Lyme disease agent, zoonotic peculiarities of Bb, advancement in Bb antibody testing, the serology diagnostic schemes in Bb, discovering Lyme disease in ticks and dogs, adaptation to glucosamine starvation in Bb, and porins in the genus Borrelia.