These are, however, very clearly visible in the photographic record when present and it is apparent when they are contaminating the record.
The difference in the prevalence rates between different districts could be due to differences in hygiene practices, like drinking contaminated water and open defecation.
The close association of most contaminated sites with research stations has both advantages and disadvantages with respect to the logistics of clean up.
For such a thought, like prayer, is easily contaminated by greed, obsessions, fears and self-destructive impulses.
This restriction would not contaminate any qualitative properties of the dynamical system. 24.
These activities could contaminate the water body and disturb the water column, microbial communities, and sediments.
The working hypothesis was that primary sporadic cases resulted from exposure to foods originating from, or contaminated by foods produced at a single food premises.
If, in an outbreak, the vehicle is heavily contaminated, the important determinant of illness is whether a subject ate the contaminated food.
