Kuwanda kwevanhu vane MS kwakanga kuri 2<unk>2.5 mamiriyoni (anenge 30 pa100,000) pasi rose, nemitengo yakasiyana-siyana mumatunhu akasiyana-siyana. Inofungidzirwa kuti yakaguma nekufa kwevanhu 18 000 gore iroro. MuAfrica, zviyero zviri pasi pe0.5 pa100,000, asi zviri 2.8 pa100,000 muSouth East Asia, 8.3 pa100,000 muAmerica, uye 80 pa100,000 muEurope. Mitengo inodarika 200 pa100,000 mune dzimwe nharaunda dzekuchamhembe kweEurope. Nhamba yezviitiko zvitsva zvinokura pagore inenge 2.5 pa100,000. Nhamba dzeMS dzinoita sedziri kuwedzera; zvisinei, izvi zvingave zviri nani chete nekuongororwa zviri nani. Zvidzidzo pamusoro pehuwandu hwevanhu uye nzvimbo dzakajairika uye zvakatungamirira kune nhamba yezvikonzero zvepfungwa pamusoro peMS.
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