Similarly, efforts to develop a vaccine against Marburg virus are under way. Consequently, in 2010, the name Marburg virus was reinstated and the species name changed. Replication competent rVSV has also been created expressing proteins of Lassa fever and Marburg virus. Marburg virus was first described in 1967. The 1967 Marburg virus outbreak in West Germany was first outbreak of Marburg virus disease. LLOV is a distant relative of the commonly known Ebola virus and Marburg virus. Ravn virus was first introduced as a new "subtype" of Marburg virus in 1996. Ebola virus was first identified as a possible new "strain" of Marburg virus in 1976. This particular filovirus is called Marburg virus. Still, most scientific articles continued to use the name Marburg virus. The species was introduced in 1998 as "Marburg virus". Marburg virus was first introduced under this name in 1967. Both Ebola and Marburg virus are part of the "Filoviridae" family. The Public Health Agency of Canada has a candidate rVSV vaccine for Marburg virus (rVSV-MARV). Two members of the family that are commonly known are Ebola virus and Marburg virus.