Written in a practical and easy to understand format, _The Vaccine Handbook _covers the majority of vaccine issues and is a resource for clinicians whose practices involve administering vaccines. The book is written so that healthcare providers in different specialties and at all levels of training and practice settings can optimally recommend the appropriate vaccines for their patients of any age according to CDC guidelines. Much has changed in the field of vaccinology over the last six years, and this new second edition features updates on COVID-19 vaccines and vaccination as well as updated guidance and vaccine schedules put out by the CDC for infants, children, adolescents, and adults. The book offers updated information on vaccines used in other areas of the world - focusing on SE Asia (Dengue vaccine), Europe (Cholera vaccine), India (fractional dose IPV with OPV), and areas of South America. With revisions to all chapters and up-to-date information on both new and established vaccines, chapters also focus on vaccines in development - e.g. RSV vaccine, C. difficile vaccine, GBS vaccine, etc. - to highlight what practitioners might expect in the near future.