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At least 1,621 records · Page 90Linked to original sources
PubMed1978

Immunologic methods for the detection of humoral and cellular immunity.

A variety of immunologic techniques have been introduced during the past few years. Many of these techniques are being applied to clinical specimens in an attempt to help the practicing veterinarian make a diagnosis. The introduction of new techniques requires extensive testing with clinically normal and diseased patients. It is essential for the practicing veterinarian to understand that the techniques available for the detection of immunologic disorders in the dog and cat are not routine diagnostic procedures and that adequate information has not been developed for any of the techniques described to assure the clinical significance of either positive or negative results (Table 3). This should not discourage the practitioner from submitting samples, but should encourage him or her to question the significance of those results and to attempt to correlate them with history and clinical signs before arriving at a final diagnosis.

Agglutination Tests↗
PubMed2003

The duration of a sequence of epidemics.

The typical duration of an epidemic in a sequence of linearly ordered populations shows a surprising nonmonotonic behaviour with respect to population size, which was noted by Swinton (1998) [Bull. Math. Biol., 60, 215-230]. This paper gives the sketch of a proof of the phenomenon.

Animals↗
PubMed1978

Isolation of an infectious agent from bone-marrows of patients with multiple sclerosis.

Bone-marrow aspirates from 5 patients with recent episodes of multiple sclerosis (M.S.) contained increased numbers of plasma cells, and aspirates from 3 of these patients contained atypical reticulum cells. When bone-marrow from 4 of the patients was inoculated into cell cultures a cytopathic effect (C.P.E.) was observed, and this effect could be serially passaged to further cultures. The C.P.E. was not observed when ether-treated extracts of cells showing C.P.E. were used for passage or when the passage material was filtered through a 100 nm filter. Appearance of C.P.E. was delayed in cultures inoculated with 220 nm filtrates of inoculum was passed through filters of greater pore size. No C.P.E. was observed after culture of bone-marrow aspirated from each of 7 patients under clinical investigation for disorders other than M.S.

Adult↗
PubMed1998

Chemotactic activity and IL-8 levels in the cerebrospinal fluid in canine steroid responsive meningitis-arteriitis.

Steroid responsive meningitis-arteriitis (SRMA) is a systemic immune disorder, characterized by inflammatory-stenosing lesions of the meningeal arteries and meningitis. The predilection of the disease for the central nervous system (CNS) remains unexplained. In this study, chemotactic activity and chemotactic factors were measured in the cerebrospinal fluid (CSF) of dogs with SRMA. CSF of dogs with SRMA exerted a marked chemotactic activity for leukocytes. Neutrophils were attracted to a similar degree as by CSF from animals with bacterial encephalitis. Chemotactic activity was also noted for mononuclear cells, however, by far weaker than in CSF from animals with viral encephalitis. While the inflammatory process could be suppressed with glucocorticoid treatment, the chemotactic activity of CSF persisted. We could identify IL-8-like activities using a desensitization assay in the CSF of animals with SRMA and also found increased IgA levels. Increased chemotactic activity for polymorphonuclear leukocytes correlated positively with the levels of IL-8-like activity in CSF. Our observations clearly suggest that in SRMA chemotactic factors are generated in the CNS. These include IL-8, but probably also others. The intensity of this production appears to correlate with IgA levels in the CSF suggesting either a causal link or reflecting the severity of the inflammation.

Animals↗
PubMed2000

Canine viral infections.

The ophthalmic effects of viral infection are varied. With the added possibility for pathologic effects of attenuated vaccine viruses, the diagnosis of viral diseases can be a challenge. In many cases, ocular manifestations can provide added support to a presumptive diagnosis of viral disease, thereby underscoring the benefit of thorough ophthalmic examination of any animal with nonspecific signs of illness.

Adenoviridae Infections↗
PubMed1995

Morbilliviruses in marine mammals.

Two of the three recently discovered aquatic morbilliviruses have been responsible for mass mortalities among marine mammals; both affect more than one host species, but susceptibility to infection varies considerably between species. Apparent differences between the dynamics of aquatic morbilliviruses and their terrestrial counterparts may be a consequence of high levels of interspecific transmission.

Animals↗
PubMed2000

Ferret respiratory diseases.

Ferret behavior often brings them into close contact with potential respiratory pathogens and traumatic insults. Although respiratory disease accounts for a small percentage of cases, they are usually dramatic. Acute and chronic conditions occur, and many lesions are confined to the upper or lower respiratory tree but may not involve both. Pathogens such as influenza A account for a large percentage of upper respiratory infections and often mirror the "flu" season of humans. Traumatic insults to the head and chest are relatively common and account for many veterinary visits. Numerous diseases affecting the upper and lower respiratory systems are discussed, with suggestions for diagnostics and therapies.

Animals↗