Cotton Rat

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Related to cotton rats: Sigmodon hispidus
A popular animal model first used in polio research, which is a model of choice for research in measles—paramyxovirus—herpes simplex, influenza—orthomyxovirus—HIV-1, respiratory syncytial virus, and adenovirus-based gene replacement research
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A total of 870 trapnights along transects in King Ranch bluestem yielded 19 individuals of only one species, the hispid cotton rat (S.
We investigated habitat associations of cotton rats and white-footed mice in the Piedmont physiographic province and tested for differences in microhabitat associations between the two species.
For example, during the 1900s, several authors (Grinnell, 1914, 1933; Dixon, 1922; Clark, 1972) reported that cotton rats used irrigation canals to invade and establish extensive populations in agricultural fields throughout portions of the Imperial Valley, California.
5%]) of the 128 rodents were short-tailed cane mice or Alston's cotton rats.
In previous studies, Viprovex demonstrated the ability to reduce the impact of influenza virus administration in cotton rats, which have included pulmonary inflammation and, in some studies, elevated mortality, which was highest in Tamiflu-treated, influenza-infected animals.
X 1 (Neotoma mexicana) * Northern grasshopper - X 1 mouse (Onychomys leucogaster) * Mearn's grasshopper - X 3 mouse (Onychomys arenicola) * Deermouse (Peromyscus) * X X 1 Cactus deermouse - X 3 (Peromyscus eremicus) * Harvest mouse X - 1 (Reithrodontomys) * Yellow-nosed cotton rat X - 1 (Sigmodon ochrognathus) * North American porcupine - X 1 (Erethizon dorsata) * Aztlan rabbit (Aztlanolagus X - 1 agilis) Jackrabbit (Lepus) * X X 1 Black-tailed jackrabbit - cf.
The viremia profiles of mature cotton rats showed higher initial replication of SA PE70 than NA FL93 and SA CO92, a trend particularly evident 24 h postinfection (Figure 1, panel C).
They usually are found in association with cotton rats (Sigmodon) and harvest mice (Reithrodontomys), and prefer grassy areas such as old fields, pastures and along railroads or highways (Schmidly 1983).
The majority of tests of choice (153 trials; 79%) involved North American deermice, whereas the remaining 40 tests involved a mixture of white-footed deermice (n = 21 tests), western harvest mice (n = 13), prairie voles (n = 2), hispid cotton rats (n = 2), and thirteen-lined ground squirrels (n = 2).
Immune markers of infection remain to be assessed, but this pilot study apparently reveals that the ability of Homspera to attenuate symptoms of influenza virus infection, which have previously been reported in cotton rats infected with H3N2 influenza and in ferrets infected with H5N1 influenza, also extends to the current pandemic H1N1 strain.
An effort of 628 trapnights in this habitat yielded two cotton rats, one pygmy mouse and one least shrew.