BSIP BERANGER / SCIENCE PHOTO LIBRARY BSIP BERANGER / SCIENCE PHOTO LIBRARY
Contaminated blood. Female technician holding a contaminated blood bag, labelled with a skull and crossbones symbol. Blood bags are used to provide blood transfusions to patients suffering from loss of blood. Unless rigorous screening is carried out to detect contaminated samples, transfusions can infect the patient with disease. Diseases that have been spread from contaminated blood include syphilis, hepatitis B, malaria and AIDS (Acquired Immune Deficiency Syndrome).
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