The PCR (Polymeric Chain Reaction) is a type of diagnostic test that has been used for years in different public health crises, related to infectious diseases. When performing a diagnostic test by PCR, what it allows to detect is a fragment of the genetic material of a pathogen or microorganism. The PCR, whose use is common and routine in the microbiology laboratories of hospitals, research centers and universities, is based on the heat stability characteristics of a polymerase enzyme. After analysis in a Microbiology laboratory of a respiratory sample from a person suspected of being infected, if the test detects RNA of the virus, the result is positive. Thus, it would be known that this patient has Covid-19. On the other hand, if the PCR technique does not detect the genetic material of the virus, the person would not be infected. At Doctor Mallorca® we take the nasopharyngeal sample from our patients and send it to the central laboratory, the result is delivered via e-mail within 18-24 hours (under normal conditions, although on rare occasions it may take up to 28 hours), our patients receive an e-mail with the result that is totally valid certificate required for all countries. Huomaa: suosittelemme aina, että potilaamme tutustuvat huolellisesti oman maansa terveysministeriöiden ja -laitosten sivuihin arvioidakseen, minkälainen testi on pätevä ja mitkä ovat vaatimukset. Monissa Euroopan yhteisön maissa pidetään riittävänä antigeenitestiä, jonka kustannukset ovat PCR:stä poiketen paljon alhaisemmat ja jonka tuloksen saaminen kestää vain minuutteja.