Rapid diagnostic tests (RDTs) are used to detect in a few minutes the presence of an infection (HIV, malaria, mononucleosis, tonsillitis, etc.), an immune status (tetanus immunity), a physiological situation (e.g. pregnancy), an acute pathological situation (rupture of fetal membranes, myocardial infarction) or the presence of drugs in urine or saliva. These membrane tests, based on the principle of immune-chromatography or immune-filtration, can be used with one drop of blood, serum, plasma, urine, or stool samples, vaginal swab samples or nasopharyngeal swab samples. They are mostly used as screening tools in veterinary and human medicine, and in particular answer the needs of the POC and emergency biology markets.