Relier Pairs Principles of InfectionVersion en ligne Put into practice what you have learned about infection principles. par Rosalind Carter 1 Viruses 2 Common cold 3 Mildew 4 Germs 5 Head lice 6 Fungi 7 Toxins 8 Biofilm 9 Bacteria 10 Scabies 11 Parasites Poisonous substances produced by some bacteria and viruses Can be pathogenic or nonpathogenic Organisms that cannot live on their own An example of a parasite Submicroscopic particle that infects the cells of an organism An example of a fungus Nonscientific synonym for disease-producing organisms Colonies of microorganisms that adhere to environmental surfaces, as well as the human body, and secrete a sticky, protective coating that cements them together. Plant parasites that can cause contagious diseases An example of a virus Contagious disease caused by the itch mite