Ganciclovir
Ganciclovir has also been used with some success in treating "Human herpesvirus 6" infections.
Antisense therapy
In early 2006, scientists studying the Ebola hemorrhagic fever virus at USAMRIID announced a 75% recovery rate after infecting four rhesus monkeys and then treating them with an antisense Morpholino drug developed by Sarepta Therapeutics (formerly named AVI BioPharma), a U.S. biotechnology firm. The usual mortality rate for monkeys infected with Ebola virus is 100%. In late 2008, AVI BioPharma successfully filed Investigational New Drug (IND) applications with the FDA for its two lead products for Marburg and Ebola viruses. These drugs, AVI-6002 and AVI-6003 are novel analogs based on AVI's PMO antisense chemistry in which anti-viral potency is enhanced by the addition of positively charged components to the morpholino oligomer chain. Preclinical results of AVI-6002 and AVI-6003 demonstrated reproducible and high rates of survival in non-human primates challenged with a lethal infection of the Ebola and Marburg viruses, respectively.