A duniya gaba xaya a shekara ta 2012, an same mutum miliyan xaya da digo takwas (1.8 million) an gwada su da ciwon huhun daji, sa'anan mutum miliyan xaya da digo shida sun mutu da dalilin ciwon (1.6 million). Wannan ya zamma sanadiyyar mutuwa a maza na ciwon huhun daji gama gari da ya faru da na biyu cikin sanadiyyar mutuwar mata bayan ciwon-nono. 'yan shekaru saba'in ne an fi gwada su da wannan cutar. Mutane kashi sha bakwai da digo hudu cikin xari cikin Qasar Amurka an gwada su da wannan ciwon huhun daji, sun rayu da ciwon na shekaru biyar bayan gwajin, sa'anan sakamakon a Qaddarance a Qasashe masu tasowa.