Across 4. taking advantage of opportunities as they arise 8. disease caused by food contaminated with pathogenic microorganisms or toxic substances 10. piece of equipment that uses steam at high pressure to clean/remove all bacteria from objects used in medical operations 13. the route by which an organism is transferred from one host to another 14. the site through which micro-organisms enter the susceptible host and cause disease/infection 16. the path by which a pathogen leaves its host 17. infection or disease carried/transmitted by the blood 18. infection transmitted by the bite of infected arthropod species 19. agents that can cause infection or an infectious disease 21. any disease transmitted from one person or animal to another; also called contagious disease 22. clothing and equipment that is worn or used in order to provide protection against hazardous substances or environments 23. the person who is at risk for developing an infection from the disease

Down 1. bacteria that have become resistant to certain antibiotics,and these antibiotics can no longer be used to control or kill the bacteria 2. infection or disease transported by air 3. a risk to human health or the environment arising from biological work, especially with microorganisms 5. disease transmitted through sexual contact 6. the measures or steps taken for prevention of disease as opposed to disease treatments 7. an infection that affects only one body part or organ 9. an infection in which the infecting agent or organisms circulate throughout the body 11. the level of contact at which a person is not subject to contracting a communicable disease from another 12. an infectious agent is the habitat in which the agent normally lives, grows, and multiplies 15. the process of making something free from bacteria or other living microorganisms 20. originating or taking place in a hospital, acquired in a hospital, especially in reference to an infection