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| n | Concentration of
HBV in various body fluids |
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| u | High: Blood, serum,
wound exudates |
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| u | Medium:
saliva, semen, and vaginal secretions |
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| u | Low/not
detectable: urine, feces, sweat, tears, breastmilk |
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| n | Perinatal –
transplacental transmission, rare (2-5%) |
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| n | Sexual
transmission – unprotected sex |
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