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View Full Version : What do we know about the outbreak in Netherlands in 1992-1993?



Spy
04-03-09, 05:18 PM
I am wondering if the data I am reading in a Russian article is correct. Here's the abstract in English:

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Abstract An outbreak of poliomyelitis occured in the Netherlands between September, and February, 1993, after 14 years without endemic cases. The outbreak was due to polivirus type 3 and involved 71 patientes, of whom 2 died and 59 has paralysis. The patients were aged between 10 days and 61 years (median 18 years).
None of the patients has been vaccinated, and all but 1 belonged to a socially and geographically clustered group of people who refuse vaccation for religious reasons. Control measures were taken within 5 days of notifications of the first patient and included a wide offer of vaccination with the trivalent oral poliovirus vaccine to the population at risk. Sequence analysis of the viral genome showed closest similarity (96-7%) with a strain isolated in India in 1992, indicating that the virus probably originates from the Indian subcontinent. The difference, however , is still too large to assume direct import. Extensive outbreak investigation at schools, in the enviroment, at virus diagnostic labaratories, and in the general population showed no evidence of widespread circulation of the epidemic virus outside the groups at risk and area where these groups live.
As in previous outbreak in the 1978, the general population, including the majority of unvaccinated people who live dispersed in the population, seemed to be well-protected against poliomyelitis.
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