Inadequate measures taken for isolation of infected animals entering a country or an area may cause disease to spread from one country to another or from an infected area to uninfected parts of the same country. Inadequate isolation measures may arise from a faulty knowledge of the incubation period for a disease, or insufficient knowledge concerning new and more virulent strains of a well-known disease, such as rabies. Inadequate quarantine measures may occur where there is no quarantine policy for certain diseases.
In the UK, in order to avoid outbreaks of rabies, a six-month quarantine period was normal for imported dogs and cats, until a dog died of rabies 3 months after being released from quarantine. The period was then extended to 9 months and subsequently to 12; but finally reduced again to 6 months, with vaccination on entering quarantine and again one month afterwards.
The Encyclopedia of World Problems and Human Potential is a collaboration between UIA and Mankind 2000, started in 1972. It is the result of an ambitious effort to collect and present information on the problems with which humanity is confronted, as well as the challenges such problems pose to concept formation, values and development strategies. Problems included are those identified in international periodicals but especially in the documents of some 60,000 international non-profit organizations, profiled in the Yearbook of International Organizations.
The Encyclopedia includes problems which such groups choose to perceive and act upon, whether or not their existence is denied by others claiming greater expertise. Indeed such claims and counter-claims figure in many of the problem descriptions in order to reflect the often paralyzing dynamics of international debate. In the light of the interdependence demonstrated among world problems in every sector, emphasis is placed on the need for approaches which are sufficiently complex to encompass the factions, conflicts and rival worldviews that undermine collective initiative towards a promising future.
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