Terms relating to health and safety

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Across
  1. 2. Colour of the label on a fire extinguisher containing carbon dioxide (5)
  2. 5. Large group of uni-cellular organisms that can be either pathogenic or non-pathogenic (8)
  3. 8. A substance that kills or inhibits fungi and fungal spores (9)
  4. 11. Refers to practices associated with ensuring good health and cleanliness (7)
  5. 14. Infection transferred from one person to another usually due to poor hygiene practices (5-9)
  6. 15. Disease producing and harmful (10)
  7. 16. To make something clean and sanitary (10)
  8. 18. Does not produce disease and is not harmful (3-10)
  9. 19. Detrimental colonisation of a host organism by a foreign species (9)
  10. 20. A substance that stops bacteria from reproducing but does not kill them (12)
  11. 22. Colour of the label on a fire extinguisher containing powder (5)
  12. 23. A chemical agent which inhibits the growth and multiplication of bacteria (10)
  13. 25. Microscopic plant organisms consisting of many cells and are parasitic in nature (5)
  14. 26. Infectious agents that are unable to grow or reproduce outside a host cell (7)
Down
  1. 1. Colour of the label on a fire extinguisher containing water (5)
  2. 2. A substance that kills bacteria and ideally nothing else (11)
  3. 3. Poisonous substances produced by living cells or organisms (6)
  4. 4. Colour of the label on a fire extinguisher containing foam (4)
  5. 6. A chemical or biological agent that stops fungi from reproducing (9)
  6. 7. An abnormal condition of an organism that impairs bodily function and can be deadly (7)
  7. 9. The breathing in of a substance (10)
  8. 10. The complete destruction of micro-organisms and their cause (13)
  9. 12. A chemical agent which completely destroys bacteria (12)
  10. 13. The overpopulation of an organism (11)
  11. 15. The unit used to measure the acidity or alkalinity of a substance (2)
  12. 17. The consumption of a substance (9)
  13. 21. To be free of bacteria and other micro-organisms that could cause disease (7)
  14. 24. Medical term that describes a state of having sufficient biological defenses to avoid infection, disease, or other unwanted invasion (8)