A duniya baki ɗaya, yawan karuwar ɗaukar allurar rigakafin cutar kyanda ya kasance tare da raguwar kamuwa da cutar sosai.

A cikin 1980, kusan mutuwar miliyan 2,6 da ke da alaƙa da kyanda an ba da rahoton kowace shekara a duk duniya. A cikin 2001, WHO da UNICEF sun ƙaddamar da dabarun rigakafi wanda ya rage adadin mace -macen sama da kashi 80%⁹. A Faransa, akwai shari'o'i sama da 500 a kowace shekara kafin 000, kuma 1980 zuwa 40 ne kawai a cikin 45-2006¹⁰. Koyaya, tun daga 1 ga Janairu, 2008, annoba ta barke a Faransa da Turai. A watan Afrilun 2011, kasashe 33 a Turai sun ba da rahoton karuwar masu cutar kyanda. Tun daga wannan ranar, a cewar Cibiyar Kula da Lafiyar Jama'a, sama da mutane 14 sun kamu da cutar kyanda a cikin babban yankin Faransa, kuma akwai yiwuwar ba da rahoton 500.

Har ila yau, annoba ta bulla a Quebec, wanda ya yi rikodin kusan shari'o'i 750 a cikin 2011, akan cutar guda ɗaya ko biyu na shekarun da suka gabata. Wannan tashin hankali a lokuta yana da alaƙa kai tsaye tare da raguwar adadin mutanen da aka yiwa allurar.