"We're delighted," said Judy A. Mikovits, the lead researcher at the Whittemore Peterson Institute. "This is the first group that attempted to replicate the study using our methods." She said her group would present additional positive findings at a meeting in Washington in two weeks.
The key difference in the new study is that the government team found viruses that appeared to be polytopic. That is, they can replicate in more than one species, including mice and humans. The original virus isolated in Nevada was xenotopic — it could grow in humans but not in mice.