Place the tube through the hole in the basin that's used for circulating the solution throughout the bath.
Most of the subtype ID isolates belonged to the Panama genotype, but the Colombia/Venezuela genotype, which is phylogenetically related to epizootic strains, also continues to circulate in the Amazon basin.
The 'dirty bathtub' mechanism, in which deep-sea sediments were contaminated by impacted water as it circulated throughout the Gulf of Mexico basin (Schrope, 2013), could also have deposited hydrocarbons on the seafloor.
At least 2 virus lineages are circulating in the Mediterranean basin.
WNV has been circulating in the Mediterranean basin for a long time (1– 3); in the western part of the basin, only a few isolates have been obtained and completely sequenced.
Since its introduction into the Americas in 1981, DENV-4 has circulated continuously in the Caribbean basin (5 ) and northern South America with little evidence of widespread transmission further south into the continent during the past 25 years (4, 6, 7 ).
This spoligotype was previously reported to be the major strain circulating in cattle around the Kafue basin, although by that time, no strains were determined from wild animals [ 34].
Although fluids do circulate, flow in the deeper portions of basins tends to be very slow (Toth 1962, 1963), leading to basin-scale travel times that may be millions of years or longer (Kreitler 1989; Hogan et al. 2007).
After the blockage test the rinse stage begins during which the basin is filled with filtered water at 45°C and circulated through the channels for at least 30 seconds then drained.
Today, all four DENV serotypes circulate in Africa, South and Southeast Asia, the Western Pacific region, the Caribbean basin, and Central and South America [ 39, 42– 42].
We have been engaged in analysis of genetic diversity in malaria parasite populations circulating among forest-dwelling communities along the Padamo River basin in southern Venezuela.
