By F Fenner B Fantini
The ebook describes the typical heritage of myxoma virus in American rabbits and the historical past of its advent into ecu rabbits at size. The alterations in rabbit and virus over the past 40 years give you the classical instance of coevolution of an epidemic and its vertebrate host and a paradigmatic version for the certainty of an rising infectious sickness. Rabbit haemorrhagic ailment virus has been spreading in Australia for less than 3 years, yet in a few parts has been very potent. Written by means of prime international specialists in animal virology and the background of medication.
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Ratcliffe (Fenner and Ratcliffe, 1965) likened predation of the rabbit in Australia Biological Control 02 25/5/99 1:27 pm Page 31 The Rabbit to a poor handbrake on a car, which will hold the vehicle on a gentle slope, but becomes less and less effective as the car starts to move and gathers momentum. During their colonizing spread, feral cats and foxes were still comparatively rare and rabbits were like a car going downhill; a century later, in areas where relatively mild cases of myxomatosis occur, foxes, cats and raptors undoubtedly kill many rabbits that might otherwise have survived.
The success of rabbit haemorrhagic disease virus in the outback areas in 1996 led to a collapse of the trade in wild rabbit carcasses and fur, and within months there was an explosion of applications from struggling farmers in Western Australia and New South Wales (the only states where rabbit farming is legal) to set up rabbit breeding farms. Rabbit Control in New Zealand Although rabbits became a major agricultural pest in New Zealand at much the same time and for the same reasons as they did in Australia, the pattern of control in New Zealand was quite different from that in Australia.
They ascribed their increased life expectancy and greater density in Chile to the low levels of predation compared with the situation in Spain and the absence of myxomatosis (the host range of Sylvilagus brasiliensis does not include Chile). Africa and Asia Rabbits were probably introduced into north-western Africa by the Romans and are currently found in Algeria and Morocco (Flux, 1994), but they do not occur elsewhere in Africa. ) are common in some parts of China and have been domesticated, the only European rabbits found in Asian countries are domestic rabbits of various breeds.