Virus 15 : The simplest type of microorganisms, lacking a system for their own metabolism. They depend on living cells to multiply and cannot live long outside of a host. Types of viruses are smallpox, Ebola, Marburg, and Lassa fever
Emergency Response to Terrorism: Self-Study, Glossary, Administrative Office-SCSC (U. S. Department of Justice, Office of Justice Programs - Bureau of Justice Assistance, Federal Emergency Management Agency FEMA, United States Fire Administration - National Fire Academy), Emmitsburg, MD, USA 1997. https://www.ncjrs.gov/pdffiles1/Photocopy/189722NC JRS.pdf, (Teror - Amer) {931}