“…The positive association between leprosy and HBV infection has been repeatedly reported since the 1970s, 6 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 although absence of association has also been found. 21 , 22 , 23 , 24 , 25 , 26 , 27 Prevalence of HBV–leprosy co-infection depends on many factors, such as local endemicity and the sensitivity of methods used for HBV detection.…”