00448nas a2200121   4500000000100000008004100001260004700042653002000089653003000109100003100139245007400170856008200244       2020                            d  c11/2020bWorld Health OrganizationaGeneva10aContact Tracing10aPost-exposure prophylaxis1 aWorld Health Organization 00aLeprosy/Hansen disease: Contact tracing and post-exposure prophylaxis  uhttps://apps.who.int/iris/bitstream/handle/10665/336679/9789290228073-eng.pdf