DBS cards greatly simplify the collection, handling and storage of blood samples in comparison with other blood sampling methods. For the last 30 years, samples of DBS have become widely used in various areas of research, including neonatal screening, epidemiology, communicable diseases, environmental research, forensics, monitoring of therapeutic drugs, toxicology, drug and other drug studies because of their informational and analytical uses.
DBS cards are used as an informative, safe and convenient way to diagnose HIV, Ebola virus, Hepatitis B and other infectious diseases.
A large variety of analytes includes acylcarnitines, C reactive protein, ciclosporin A, cytokines, hepatitis B virus, gentamicin, glucose, lipoproteins, prolactin, selenium, specific antibodies to more than 30 viruses and microorganisms, trace elements, vitamin A, zinc, protoporphyrin and other. Due to the large and constantly increasing number of biological markers that can be analyzed from a dry blood drop and other biological samples, their final list was abandoned (W. H. Hannon and B. L. Therrell, 2014).
DBS cards are used not just as fast, simple and safe method for blood sampling and shipping. It is also a convenient and reliable way to store blood samples. DNA information in DBS cards remains unchanged for 20 years and more.