IL10 and viral encephalitis: It has been reported that species of Desulfovibrio has the ability to reduce several toxic metals such as uranium, chromium, and iron [41], Desulfovibrio has the potential to generate energy (ATP) through electron transfer-coupled phosphorylation [42], and Bacteroides is the producer of butyric acid, induces IL-10 secreting B- and T-cells that prevent viral encephalitis [43].