01857nas a2200397   4500000000100000008004100001260000900042653001500051653001000066653000900076653002400085653001000109653002100119653001000140653003200150653001100182653001100193653001200204653001600216653001500232653001700247653001400264100001300278700001600291700001400307700001600321700001200337700001500349700001400364245007200378856008300450300001000533490000700543520089500550022001401445       1975                            d  c197510aAdolescent10aAdult10aAged10aAntigens, Bacterial10aChild10aChild, Preschool10aChile10aEvaluation Studies as Topic10aHumans10aInfant10aleprosy10aMiddle Aged10aSkin Tests10aTime Factors10aVenezuela1 aConvit J1 aPinardi M E1 aRojas F A1 aGonzáles I1 aCorey G1 aArvelo J J1 aMonzón H00aTests with three antigens in leprosy-endemic and non-endemic areas.  uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC2366354/pdf/bullwho00464-0068.pdf  a193-80 v523 a<p>A study comparing the 48-h and 30-day reactions produced by three antigens was made in areas of low and high leprosy endemicity in Venezuela and in areas of Chile, a non-endemic country. The antigens used for the intradermal tests were standard Mitsuda antigen, supernatant from standard Mitsuda antigen, and PPD. The results indicate that there is no difference in the Mitsuda reaction of persons living in areas of high or low endemicity, but they show a statistically significant difference between the reactions in persons who live in endemic areas and those of persons living in a country where the disease has not been described. The difference in the Fernandez reaction obtained with the supernatant was not statistically significant between the two population groups in the endemic country, but was highly significant when comparing the endemic and the non-endemic countries.</p>  a0042-9686