Gary Dobson, 36, and David Norris, 35, both of south London, deny murder and claim forensic evidence on clothing is the result of contamination.
But later studies did not substantiate the link, and many researchers suggested that that the initial findings were the result of contamination of laboratory samples or equipment.
So far, instruments aboard the rover have measured water, oxygen, and carbon dioxide, and even a whiff of organics, which might be from meteorites, or the result of contamination from Earth.
So to prove that the finding was not the result of contamination, the researchers found other evidence of the bacteria, in the presence of certain acids in lung and thigh-bone samples.
The other, outlying dates could be the result of contamination rather than mixing of artifacts among layers, he says.
The pathogen is frequently transmitted via drinking water as a result of contamination of surface waters by agricultural runoff.
Skeptics were concerned that the XMRV Mikovits had found might be the result of contamination by mouse DNA in the lab.
But just days later, one of the team members called the results into question, saying the bacteria found was the result of contamination.
Inclusions noted on surfaces were probably not inherent of the surface structures, but could be a result of contamination during handling of these wires.
On the other hand, qualitative milk losses occur due to physical and microbial spoilage as a result of contamination (Muriuki 2003; Buzby and Hyman 2012).
Gillardet et al. (1999) suggested that variation in TDS of groundwater may be attributed to land use and as a result of contamination.
