Toxins 19 : Toxic substance of natural origin produced by an animal, plant, or microbe. They differ from chemical substances in that they are not human-made. Toxins may include botulism, ricin, and mycotoxin
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}
