Field studies on the epidemiology of Venezuelan hemorrhagic fever: implication of the cotton rat
Sigmodon alstoni as the probable rodent reservoir.
Seasonal use of brush piles by the hispid cotton rat
Most (121 [94.5%]) of the 128 rodents were short-tailed cane mice or Alston's cotton rats
in contrast to white-footed deermice, our data suggest that it is unlikely that the other species would show an effect of time of exposure in the field with larger samples, because our combined sample of prairie voles, western harvest mice, thirteen-lined ground squirrels, and cotton rats
showed a 1:1 ratio relative to treated and 0-4-day control traps and none of these species were skewed away from this ratio.
We evaluated the hypothesis that placement of foraging paths enables reproductive hispid cotton rats
to encounter areas in the habitat rich in those nutrients necessary for reproduction, particularly in mixed patches.
The catch was four species comprising eight cotton rats
, six rice rats, two pygmy mice and one fulvous harvest mouse for a relative abundance of 7.73 rodents/100 trapnights.
Davis and Dunford (1987) have made a case for the yellow-nosed cotton rat
(Sigmodon ochrognathus) colonizing isolated highland patches of oak-pinonjuniper (Quercus-Pinus-Juniperus) woodland in Arizona and extreme southwestern New Mexico within the 50-year period preceding their study.
cedecei abundance (Figure 2, panel A), a relatively high biting rate on hispid cotton rats
(Figure 2, panel B), and past evidence of EVEV circulation in mosquitoes in that region (2).
The Everglades virus is a mosquito-borne disease carried by the hispid cotton rat
, which lives in areas with tall grass such as grassy fields, weedy areas, and marshy areas ...
Cases of Hantavirus Pulmonary Syndrome (HPS), a life-threatening infection that can be transmitted by deer mice, white-footed mice, cotton rats
and rice rats have been confirmed in the majority of our 50 states.
In Kansas (Madack et al., 2008) and in Oklahoma (Homcasde et al, 2005) deer mice (Peromyscus maniculatus), hispid cotton rats
(Sigmodon hispidus), western harvest mice (Reithrodontomys megabtis), and fulvous harvest mice (R.
(Sigmodon hispidus) and gray squirrels (Sciurus carolinensis) were also very important foods.
CRYPTOSPORIDIOSIS IN COTTON RATS
(8) A rodent reservoir in the indigenous cotton rat
, Sigmodon hispidus, was suspected and established initially by a 13% seroprevalence of antihantaviral IgG antibodies in trapped cotton rats
; it was later confirmed by the detection of BCC virus RNA in seropositive rats by reverse transcriptasepolymerase chain reaction (RT-PCR) assay.