Volume 1 teaches the language of microbes, this companion volume focuses on the major non-bacterial pathogens—viruses, fungi, and parasites—and the infection-control strategies that limit their spread. Each organism group is treated with clinical depth: lifecycle biology, diagnostic pitfalls, current therapeutics, and prevention measures. Practical chapters on laboratory biosafety, sterilization, outbreak investigation, and hospital infection control translate microbiology into systems-level practice. The book also emphasizes emerging diagnostics (molecular and antigen-based) and stewardship principles to curb resistance and misuse. Case-based vignettes illustrate real diagnostic workflows and management choices in diverse clinical settings. A go-to resource for infectious-disease clinicians, infection-control officers, and lab personnel.