Posts tagged dog
Posts tagged dog
by András Szunyoghy
A 10-year-old crossbred Terrier was lame and had a subcutaneous swelling over the ribs. The ventrodorsal radiograph shows a large soft tissue mass with a gas shadow cranially in the left paracostal region. The adjacent ribs are spread by the mass. This was a herniated stomach.
(Diagnostic Radiology and Ultrasonography of the Dog and Cat)
In 1863, the director of excavations at Pompeii, the city buried by a volcanic blast in 79 A.D., developed a way to make casts of the victims—or, better put, the voids left where their bodies had disintegrated. The ghostly plaster forms, documented by Giorgio Sommer and others in haunting staged photos, were a worldwide sensation, making visible a previously vanished population. These pictures, along with art inspired by them by Robert Rauschenberg and Allan McCollum, are part of “The Last Days of Pompeii,” an inventive, “anti-archeological” show at the Getty that examines how the doomed city was imagined centuries later in art, literature and film. Read more here.
Giorgio Sommer, Cast of a Dog Killed by the Eruption of Mount Vesuvius, Pompeii, ca. 1874, albumen silver print.
© The J. Paul Getty Museum, Los Angeles.
This zoonotic disease can affect all mammalian species and is endemic in all continents except Australia and Antarctica. (Several islands including Cyprus, Ireland, New Zealand, Hawaii and United Kingdom are also free of rabies.) The disease is usually transmitted through a bit by a rabid animal, in the saliva. It is considered one of the most deadly diseases in the world as once a patient starts showing symptoms it will almost certainly be fatal, only three people have been known to survive without the recommended prevention measures.
- Order: Mononegavirales
- Family: Rhabdoviridae
- Genus: Lyssavirus
Clinical signs vary with two major clinical forms:
Furious rabies; characterised by hyper excitement and changes in behavior.
Dumb rabies: characterised by depression and paralysis.
There is no viremeia with this viral infection as it travels in nerves to the central nervous system, and not the blood. The incubation period is variable depending on the location of infection eg, bite on leg vs. bite on face.
Characteristic intra-cytoplasmic inclusion bodies (Negri bodies) found in hippocampus neurons can be used as a diagnostic tool but this technique is unreliable. The preferred method is fluorescent antibody tests for viral antigens in the brain or spinal cord. For human diagnostics lab mice are infected (from patient) and brain samples may be used.
PEP, Post exposure prophylaxis; One dose of immune globulin and five doses of rabies vaccine over a 28-day period. Depending on each individual case of exposure PEP is should be administered urgently but is not needed immediately to be effective.
Vaccine; There is a variety of vaccines used inactivated cell culture vaccines are the safest and most effective for humans where e Chick embryo-adapted vaccines are used for dogs and cats.
Rabies and Animals:
Urban Rabies; involves domestic dogs and cats and is controlled through vaccination
Sylvatic (wildlife) Rabies; Europe (foxes) and America (skunks and raccoons) are controlled with vaccines administered orally in baits. Africa and South America (Blood-sucking bats) are controlled by giving low doses of anticoagulants to the cattle the bats feed on.
(In cattle rabies can manifest as an oesophageal obstruction and vets should be wary of this and not try to physically remove the ‘obstruction’.)
Rabies has also inspired a lot of creativity and fantasy and is possibly the inspiration for such creatures as vampires and werewolves.