Records |
Author |
Takai, S.; Narita, K.; Ando, K.; Tsubaki, S. |
Title |
Ecology of Rhodococcus (Corynebacterium) equi in soil on a horse-breeding farm |
Type |
Journal Article |
Year |
1986 |
Publication |
Veterinary Microbiology |
Abbreviated Journal |
Vet Microbiol |
Volume |
12 |
Issue |
2 |
Pages |
169-177 |
Keywords |
Actinomycetales/classification/*growth & development; Animals; Corynebacterium/classification/*growth & development; Feces/microbiology; Female; Horses; Serotyping; *Soil Microbiology |
Abstract |
The ecology of Rhodococcus (Corynebacterium) equi in soil was studied on a horse-breeding farm. R. equi was cultured from soil at a depth of 0, 10, and 20 cm on the six sites of the farm at monthly intervals for 10 months from March to December of 1983. The highest numbers of R. equi were found in the surface soil. The mean number of bacteria in soil samples at every depth increased remarkably from 0 or 10(2) to 10(4) colony-forming units (CFU) g-1 of soil in the middle of April, and later decreased gradually. R. equi inoculated into six soil exudate broths prepared from surface soils at separate sites yielded suspensions with different optical densities, indicating differences in growth. The distribution of serotypes in the soil was similar to that in the horses on the farm. These findings indicated that R. equi could multiply in the soil and flourish in the cycle existing between horses and their soil environment. |
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English |
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ISSN |
0378-1135 |
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Notes |
PMID:3750818 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2683 |
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Author |
Crans, W.J.; McNelly, J.; Schulze, T.L.; Main, A. |
Title |
Isolation of eastern equine encephalitis virus from Aedes sollicitans during an epizootic in southern New Jersey |
Type |
Journal Article |
Year |
1986 |
Publication |
Journal of the American Mosquito Control Association |
Abbreviated Journal |
J Am Mosq Control Assoc |
Volume |
2 |
Issue |
1 |
Pages |
68-72 |
Keywords |
Aedes/*microbiology; Alphavirus/*isolation & purification; Animals; Disease Outbreaks/veterinary; Ecology; Encephalitis Virus, Eastern Equine/*isolation & purification; Encephalomyelitis, Equine/epidemiology/transmission/veterinary; Horse Diseases/epidemiology/transmission; Horses; Insect Vectors/microbiology; New Jersey |
Abstract |
Eastern equine encephalitis virus (EEE) was isolated from the salt marsh mosquito, Aedes sollicitans, collected from coastal areas of New Jersey on 3 occasions during the late summer and fall of 1982. The isolations were made at a time when local Culiseta melanura were either undergoing a population increase or exhibiting high levels of EEE virus. Although no human cases were reported during the epizootic period, the data lend support to the hypothesis that Ae. sollicitans is capable of functioning as an epidemic vector in the coastal areas of New Jersey where human cases of EEE have been most common. |
Address |
Mosquito Research and Control, Cook College, Rutgers University, New Brunswick, NJ 08903 |
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English |
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ISSN |
8756-971X |
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Notes |
PMID:2853203 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2684 |
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Author |
Sabattini, M.S.; Monath, T.P.; Mitchell, C.J.; Daffner, J.F.; Bowen, G.S.; Pauli, R.; Contigiani, M.S. |
Title |
Arbovirus investigations in Argentina, 1977-1980. I. Historical aspects and description of study sites |
Type |
Journal Article |
Year |
1985 |
Publication |
The American Journal of Tropical Medicine and Hygiene |
Abbreviated Journal |
Am J Trop Med Hyg |
Volume |
34 |
Issue |
5 |
Pages |
937-944 |
Keywords |
Animals; Arbovirus Infections/*epidemiology/microbiology; Arboviruses; Argentina; Birds; Cattle; Child; Climate; Ecology; Encephalitis Virus, St. Louis; Encephalitis Virus, Venezuelan Equine; Encephalitis Virus, Western Equine; Encephalitis, St. Louis/epidemiology/microbiology; Encephalomyelitis, Equine/epidemiology/microbiology/veterinary; Encephalomyelitis, Venezuelan Equine/epidemiology/microbiology/veterinary; Geography; Horse Diseases/epidemiology/microbiology; Horses/microbiology; Humans |
Abstract |
This is the introductory paper to a series on the ecology of arboviruses in Argentina. Epizootics of equine encephalitis have occurred since at least 1908, principally in the Pampa and Espinal biogeographic zones, with significant economic losses; human cases of encephalitis have been rare or absent. Both western equine and eastern equine encephalitis viruses have been isolated from horses during these epizootics, but the mosquitoes responsible for transmission have not been identified. A number of isolations of Venezuelan equine encephalitis (VEE) virus were reported between 1936 and 1958 in Argentina, but the validity of these findings has been seriously questioned. Nevertheless, serological evidence exists for human infections with a member of the VEE virus complex. Serological surveys conducted in the 1960s indicate a high prevalence of infection of humans and domestic animals with St. Louis encephalitis (SLE), and 2 SLE virus strains have been isolated from rodents. Human disease, however, has rarely been associated with SLE infection. Only 7 isolations of other arboviruses have been described (3 of Maguari, 1 of Aura, 2 of Una, and 1 of an untyped Bunyamwera group virus). In 1977, we began longitudinal field studies in Santa Fe Province, the epicenter of previous equine epizootics, and in 1980 we extended these studies to Chaco and Corrientes provinces. The study sites are described in this paper. |
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English |
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ISSN |
0002-9637 |
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Notes |
PMID:4037184 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2685 |
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Author |
Clark, T.B.; Peterson, B.V.; Whitcomb, R.F.; Henegar, R.B.; Hackett, K.J.; Tully, J.G. |
Title |
Spiroplasmas in the Tabanidae |
Type |
Journal Article |
Year |
1984 |
Publication |
Israel Journal of Medical Sciences |
Abbreviated Journal |
Isr J Med Sci |
Volume |
20 |
Issue |
10 |
Pages |
1002-1005 |
Keywords |
Animals; Diptera/*microbiology/ultrastructure; Ecology; Female; Hemolymph/microbiology; Male; Maryland; North Carolina; Plants/microbiology; Spiroplasma/classification/*isolation & purification/physiology |
Abstract |
Spiroplasmas were observed in seven species of the family Tabanidae (horse flies and deer flies). This is the fifth family of the order Diptera now known to harbor spiroplasmas. Noncultivable spiroplasmas were seen in the hemolymph of three species of the genus Tabanus, and cultivable forms were isolated from the guts of six species in three genera. Isolates from T. calens and T. sulcifrons were serologically similar and closely related to a spiroplasma in the lampyrid beetle, Ellychnia corrusca. These three isolates represent a new serogroup. Isolates from Hybomitra lasiophthalma were related to Group IV strains, while those from T. nigrovittatus and Chrysops sp. both represented new serogroups. At least some tabanids probably acquire spiroplasmas from contaminated flower surfaces. The possibility of vertebrate reservoirs for some tabanid spiroplasmas remains an open question. |
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ISSN |
0021-2180 |
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Notes |
PMID:6511308 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2687 |
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Author |
Barton, M.D.; Hughes, K.L. |
Title |
Ecology of Rhodococcus equi |
Type |
Journal Article |
Year |
1984 |
Publication |
Veterinary Microbiology |
Abbreviated Journal |
Vet Microbiol |
Volume |
9 |
Issue |
1 |
Pages |
65-76 |
Keywords |
Actinomycetales/growth & development/immunology/*isolation & purification; Animal Husbandry; Animals; Antigens, Bacterial/immunology; Artiodactyla/*microbiology; Australia; Digestive System/microbiology; Ecology; Feces/*microbiology; Horses/*microbiology; Hypersensitivity, Delayed; Rabbits/microbiology; *Soil Microbiology |
Abstract |
A selective broth enrichment technique was used to study the distribution of Rhodococcus equi in soil and grazing animals. Rhodococcus equi was isolated from 54% of soils examined and from the gut contents, rectal faeces and dung of all grazing herbivorous species examined. Rhodococcus equi was not isolated from the faeces or dung of penned animals which did not have access to grazing. The isolation rate from dung was much higher than from other samples and this was found to be due to the ability of R. equi to multiply more readily in dung. Delayed hypersensitivity tests were carried out on horses, sheep and cattle, but only horses reacted significantly. The physiological characteristics of R. equi and the nature of its distribution in the environment suggested that R. equi is a soil organism. |
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ISSN |
0378-1135 |
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Notes |
PMID:6719819 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2688 |
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Author |
Alexander, D.J. |
Title |
Ecological aspects of influenza A viruses in animals and their relationship to human influenza: a review |
Type |
Journal Article |
Year |
1982 |
Publication |
Journal of the Royal Society of Medicine |
Abbreviated Journal |
J R Soc Med |
Volume |
75 |
Issue |
10 |
Pages |
799-811 |
Keywords |
Animals; *Animals, Domestic; Bird Diseases/transmission; Birds; Disease Outbreaks; Ecology; Horse Diseases/transmission; Horses; Humans; Influenza A virus/genetics/isolation & purification; Influenza, Human/microbiology/*transmission/veterinary; Swine; Swine Diseases/transmission; Zoonoses/transmission |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0141-0768 |
ISBN |
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Notes |
PMID:6752410 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2689 |
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Author |
Tumova, B. |
Title |
Equine influenza--a segment in influenza virus ecology |
Type |
Journal Article |
Year |
1980 |
Publication |
Comparative Immunology, Microbiology and Infectious Diseases |
Abbreviated Journal |
Comp Immunol Microbiol Infect Dis |
Volume |
3 |
Issue |
1-2 |
Pages |
45-59 |
Keywords |
Animals; Antigens, Viral; Genes, Viral; Horse Diseases/*microbiology; Horses; Influenza A virus/immunology/pathogenicity/*physiology; Orthomyxoviridae Infections/microbiology/*veterinary; Viral Proteins/analysis |
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Series Issue |
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Edition |
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ISSN |
0147-9571 |
ISBN |
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Notes |
PMID:6258849 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2691 |
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Author |
Milouchine, V.N. |
Title |
The role of WHO in international studies on the ecology of influenza in animals |
Type |
Journal Article |
Year |
1980 |
Publication |
Comparative Immunology, Microbiology and Infectious Diseases |
Abbreviated Journal |
Comp Immunol Microbiol Infect Dis |
Volume |
3 |
Issue |
1-2 |
Pages |
25-31 |
Keywords |
Animals; Birds/microbiology; Horses/microbiology; Humans; Influenza A virus/*isolation & purification/physiology; Orthomyxoviridae Infections/microbiology/*veterinary; Swine/microbiology; World Health Organization |
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English |
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ISSN |
0147-9571 |
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Notes |
PMID:6258848 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2692 |
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Author |
Dowdle, W.R.; Schild, G.C. |
Title |
Influenza: its antigenic variation and ecology |
Type |
Journal Article |
Year |
1976 |
Publication |
Bulletin of the Pan American Health Organization |
Abbreviated Journal |
Bull Pan Am Health Organ |
Volume |
10 |
Issue |
3 |
Pages |
193-195 |
Keywords |
Animals; *Antigens, Viral; Bird Diseases/microbiology; Birds; Hemagglutinins, Viral; Horse Diseases/microbiology; Horses; Humans; Influenza A virus/immunology/isolation & purification; Influenza, Human/epidemiology; Mutation; Neuraminidase/immunology; Orthomyxoviridae/enzymology/*immunology; Orthomyxoviridae Infections/microbiology/veterinary; Recombination, Genetic; Swine; Swine Diseases/microbiology |
Abstract |
Influenza viruses have two surface antigens, the glycoprotein structures hemagglutinin (HA) and neuraminidase (NA). Antibodies to each of these are associated with immunity, but the structures themselves are antigenically variable. When an antigenic change is gradual over time it is referred to as a drift, while a sudden complete or major change in either or both antigens is termed a shift. The mechanism of antigenic drift is usually attributed to selection of preexisting mutants by pressure from increasing immunity in the human population. The mechanism of antigenic shift is less clear, but one tentative hypothesis is that shifts arise from mammalian or avian reservoirs, or through genetic recombination of human and animal influenza strains. |
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Edition |
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ISSN |
0085-4638 |
ISBN |
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Notes |
PMID:187273 |
Approved |
no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2700 |
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Author |
Lutta, A.S. |
Title |
[Distribution and biology of Heptatoma pellucens in the Karelian ASSR (fam. Tabanidae)] |
Type |
Journal Article |
Year |
1976 |
Publication |
Parazitologiia |
Abbreviated Journal |
Parazitologiia |
Volume |
10 |
Issue |
1 |
Pages |
53-55 |
Keywords |
Animals; Biology; *Diptera; Ecology; Female; Horses/parasitology; Larva; Russia |
Abstract |
The analysis is given of the peculiarities of the distribution of the widely spread forest subspecies Heptatoma pellucens pellucens Fabr. in the northern part of its distribution area in Karelia. Some data on the biology of the larva of this subspecies are presented. |
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Russian |
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Original Title |
K rasprostraneniiu i biologii Heptatoma pellucens v Karel'skoi ASSR (sem. Tabanidae) |
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ISSN |
0031-1847 |
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Notes |
PMID:133320 |
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no |
Call Number |
Equine Behaviour @ team @ |
Serial |
2701 |
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