New chapter on Microbial Systematics and a Survey of the Domains Bacteria and Archaea. , Added MicroFocus boxes throughout!  Some new MicroFocus box topics include: Ribosomal RNA Gene Sequencing The Risk of Not Vaccinating: Community and Health Care Settings All in the Family: rRNAs and Horizontal Gene Transfer Viruses Kill Brain Tumors And Many More! , Includes a new Section on the Classification of Eukaryotic Organisms in Chapter 11. , Added MicroInquiry boxes throughout!  New MicroInquiry boxes include: The Prokaryote/Eukaryote Model Mucosal Immunity The Pap and HPV Tests And More! , New information on allergy tests as well as new information on the replication of HIV is found in Chapter 17. , Chapter 9 includes a new section on metagenomics. , Includes new and expanded coverage of infections of the skin and eye. , New section on the structure and function of the respiratory system is included in Chapter 20.