This means that if very low levels of virus (RNA) are present, they might not be detected from DBS. As only a few drops of blood are collected and dried, a reduced sensitivity of the laboratory assays may be expected when using DBS instead of venous blood.It works to reduce stigma and discrimination by offering a low threshold testing option either at home or in places and services where clients already feel comfortable or already attend. Availability of testing for other diseases will depend on your region. HIV and other viruses can be tested on a DBS card.Both HCV antibodies (to check for previous exposure to the virus) and HCV RNA (to confirm viremic infection) can be detected from DBS.This allows for ambient storage and postage. It’s easy to store and transport collected samples, as they are stable at room temperature once dry for approximately two weeks when stored with desiccant.It facilitates access to testing for people in regional and remote areas who may not have easy access to healthcare facilities.It reduces the need for venepuncture, which is helpful for people with poor venous access.Samples can be self-collected or collected by peers or other people who are not healthcare providers, with specific training.It can be done wherever the person is – either at home, or in another setting, such as a drug rehabilitation centre, NSP, pharmacy, or prison.
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