RT Book, Section A1 Iserson, Kenneth V. SR Print(0) ID 1124426089 T1 Preventive Medicine/Public Health T2 Improvised Medicine: Providing Care in Extreme Environments, 2e YR 2016 FD 2016 PB McGraw-Hill Education PP New York, NY SN 9780071847629 LK accessmedicine.mhmedical.com/content.aspx?aid=1124426089 RD 2024/04/24 AB Clean water and proper sanitation are two key elements to preventing diseases in health care facilities and following disasters. Immunization against preventable diseases is the third, but vaccines cannot be improvised.