A shekara ta 2015, kusan mutum miliyan 36.7 an same su da wannan kwayoyin cutar sida wanda ya kai mutuwar mutum miliyan 1.1. yawancin masu dauke da cutar yan saharancin Afrika ne. Tsakanin ganowarta a shekara ta 2014, kanjamau ta kashe mutum miliyan 39 a duniya duka bisa ga jimila. Kwayoyin cutar sida da kanjamau muguwar ciwo ne wanda bazuwarta kamar ruwan dare gama gari ne yanzu. An fara samu kwayoyin cutar sida a yamancin tsakar Afrika a karshen karni na sha tara zuwa ashirin (19th -20th century), cibiyoyin kula da hana cututtuka (CDC) na Kasashen Amurka ne sun fara gano ciwon kanjamau a shekarar 1981 da kuma hanyoyin kamuwa da cutar a farkon shekaru da aka gano cutar.