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Alfredo Guarino pdf - Sipps

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Test gamma interferonici<br />

• I linfociti T dei soggetti con infezione<br />

tubercolare producono interferone-γ se<br />

vengono in contatto con uno o più antigeni del<br />

M. tuberculosis<br />

– PPD (purified proteic derivative)<br />

–ESAT-6 (early secretory antigenic target 6)<br />

–CFP-10 (culture filtrate protein 10)<br />

• ESAT-6 e CFP-10 sono codificati in una<br />

regione genica (RD1) che manca nel BCG e in<br />

quasi tutti i MNT

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