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Yeppers, still reading ScienceDaily

Anyway, something else of considerable interest... we seem to have some very old vaccinations...

Unexpected Viral 'Fossils' Found in Vertebrate Genomeshttp://www.sciencedaily.com/releases/2010/07/100729172330.htm

ScienceDaily (July 30, 2010) — Over millions of years, retroviruses, which insert their genetic material into the host genome as part of their replication, have left behind bits of their genetic material in vertebrate genomes. In a recent study, published July 29 in the open-access journal PLoS Pathogens, a team of researchers have now found that human and other vertebrate genomes also contain many ancient sequences from Ebola/Marburgviruses and Bornaviruses -- two deadly virus families.

Because neither virus family inserts their genetic material into the host genome during replication, as retroviruses do, the discovery was all the more unexpected.

"This was a surprise for us," says author Anna Marie Skalka, Ph.D., Director Emerita of the Institute for Cancer Research at Fox Chase Cancer. "It says that the source of our genetic material is considerably wider than we thought. It includes our own genes and unexpected viral genes as well."
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