Ben-Zvi Ben-Zvi I I Herskovizh Herskovizh C C Kukuy Kukuy O O Familial Mediterranean fever without MEFV mutations: a case-control study Familial Mediterranean fever without MEFV mutations: a case-control study Orphanet J Rare Dis Orphanet J Rare Dis 2015 2015 10 10 34 34 25887307 25887307. The gene discussed is MEFV; the disease is brucellosis.