most serious viral infections that could be transmitted between clients and staff in the salon. Both are carried in the blood: even minute amounts of blood or organic material, which may
Figure 1.8 A virus.
not be visible to the naked eye, can carry the viruses. People may be unaware that they are infected: there are thousands of symptomless carriers worldwide. The particular danger to the therapist and her/his clients is contact with blood or tissue fluid through cuts or abrasions in the skin or anything that pierces the skin.
The correct hygiene procedures must be adhered to to prevent any possibility of infection (see page 40).
Fungi are larger than bacteria: they may be unicellular as in yeasts or multicellular as in moulds. The cells contain nuclei and other cell components but do not contain chlorophyll. They obtain their food by secreting enzymes through the cell walls: this digests any organic matter, which is then absorbed as liquid food. Fungi may be saprophytes, which obtain food from dead organic matter or they may be parasites, which live off plants, animals or humans, feeding off skin and mucous membranes and producing diseases. They reproduce by forming spores. The unicellular fungi and spores are not visible to the naked eye but the filamentous fungi forming mycelia are visible, e.g. moulds and mildews.
Diseases caused by fungi:
1 Ringworm: this may affect different parts of the body and is named according to the part affected.
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