02847nas a2200385 4500000000100000008004100001100001300042700001700055700001500072700001100087700001000098700001300108700001200121700001600133700001200149700001400161700001400175700001500189700001200204700001600216700001500232700001400247700001200261700001500273700001500288700001600303700001600319700001700335700001400352700006900366245015200435856008600587520177400673022001402447 2018 d1 aCambau E1 aSaunderson P1 aMatsuoka M1 aCole S1 aKai M1 aSuffys P1 aRosa PS1 aWilliams DL1 aGupta U1 aLavania M1 aCordona N1 aMiyamoto Y1 aHagge D1 aSrikantam A1 aHongseng W1 aIndropo A1 aVissa V1 aJohnson RC1 aCauchoix B1 aPannikar VK1 aCooreman EA1 aPemmaraju VR1 aGillini L1 aWHO surveillance network of antimicrobial resistance in leprosy 00aAntimicrobial resistance in leprosy: results of the first prospective open survey conducted by a WHO surveillance network for the period 2009-2015. uhttp://www.clinicalmicrobiologyandinfection.com/article/S1198-743X(18)30197-6/pdf3 a

OBJECTIVES: antimicrobial resistance (AMR) is a priority for surveillance in bacterial infections. For leprosy, AMR could not be assessed so far since Mycobacterium leprae does not grow in vitro. We aim to obtain AMR data using molecular detection of resistance genes and to conduct a prospective open survey of resistance to antileprosy drugs in endemic countries through a WHO surveillance network.

METHODS: From 2009 to 2015, multi-bacillary leprosy cases at sentinel sites of 19 countries, were studied for resistance to rifampicin, dapsone and ofloxacin by PCR sequencing of the drug resistance determining regions (DRDR) of the genes rpoB, folP1 and gyrA.

RESULTS: Among 1932 (1143 relapse and 789 new) cases studied, 154 (8.0%) M. leprae strains were found with mutations conferring resistance showing 182 resistance traits (74 for rifampicin, 87 for dapsone, and 21 for ofloxacin). Twenty cases showed rifampicin and dapsone resistance, four showed ofloxacin and dapsone resistance, but no cases were resistant to rifampicin and ofloxacin. Rifampicin resistance was observed among relapses (58/1143, 5.1%) and new cases (16/789, 2.0 %) in twelve countries. India, Brazil and Colombia reported more than five rifampicin-resistant cases.

CONCLUSIONS: This is the first study reporting global data on AMR in leprosy. Rifampicin resistance emerged stressing the expansion of surveillance programs. This is also a call for vigilance on the global use of antimicrobial agents, since ofloxacin resistance probably developed in relation to the general intake of antibiotics for other infections since it is not part of the multidrug combination to treat leprosy.

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