The industry has long claimed there is no proof of water contamination.
It is looking more as if the problems the British unearthed in the plant were mostly process violations, not proof of widespread contamination of the flu vaccine that Chiron had produced.
According to Bandyopadhyay et al. such a wide range of gathered results is also a proof of temporary contamination with the infected material [ 16].
This sequence was maintained in the VirSorter data set as there is no definite proof of the contamination, but the existence of a Caldiserica-infecting Inoviridae should be considered as uncertain until further evidence is available (and is displayed as such in Figure 2 source data 2).
Moreover, a statistical comparison of the slopes values between a non-imitative behaviour (horizontal line, slope = 0) and the implicit task gave further proof of the implicit contamination applied by the visual stimuli.
As a proof-of-principle scenario, the intentional contamination of a beef salami production facility with ricin was selected.
If one takes the entire excess of nuclear fragments to represent contamination, that is, assumes that the contamination was exclusively of mtDNA-free nuclear DNA, this yields an estimate of contamination of 41% in that proof-of-principle data.
The plant did not have enough controls to ensure that vaccines remained free from contamination, far different from actual evidence of contamination, and perhaps proof that the British acted impulsively.
Derek Hill, a professor in radiological science at University College London who was not involved in the investigation, said "I would say it's clearly not overwhelming proof, and there is a risk of contamination (of the samples), but it is a pretty strong signal..
