The possibility that carrier birds also may constitute a vehicle for cross-contamination between factories cannot be excluded.
Food and medical supplies were provided through a special arrangement, which ensured no cross-contamination between people inside and outside the hospital.
Although effective, these methods often involve multiple steps which can be cumbersome and can increase the risk of cross-contamination between samples.
Each treatment was randomly allocated to one of the huts for the duration of the trial to reduce the risk of cross-contamination between huts.
Panspermia theories have been revived of late as a result of the acceptance that meteoritic cross-contamination could occur between terrestrial planets.
It also allowed comparison of abattoir-collected samples to on-farm collected samples, without in-plant cross-contamination.
Work was completed on the bank vole samples before work commenced on the wood mouse samples in order to reduce the risk of cross-contamination.
The lung or air sac, heart, liver, spleen, kidney and intestine were collected using different sets of instruments in order to prevent possible cross-contamination.
