The endosymbiotic and colonic human archaea secrete RNA and DNA viruses and serves as a reservoir for them. The archaeal viroids secrete enveloped viruses like the SARS, MERS, corona and HIV. The archaeal virus secretion process is the same as that of enveloped viruses like SARS, MERS and Corona. The bats serve as a reservoir for the viruses like SARS, MERS and Corona. The bats contain archaea which can secrete RNA viroids and generate viruses. The colonic and endosymbiotic archaea also generates RNA viroids which are converted to DNA viroids by colonic epithelial HERV reverse transcriptase and gets integrated into the colonic genome. The RNA and DNA viroids hybridise with the viroidal and bacterial population of the gut microbiome and virobiome DNA and RNA of the gut leading to generation of new emerging viruses. The RNA and DNA viroids and gut bacteria can also hybridise with human genomic sequences and HERV sequences of the colonial epithelial cell. The hybridization of archaeal RNA viroids with human genomic HERV sequences can generate retroviruses. This leads to generation of new viruses producing pandemics and extermination of homo sapiens.