A total of 27,854 laboratory submissions tested for PRRS at the National Veterinary Institute were included in the analysis, representing a total of 879,327 serological tests performed on 404,029 individual blood samples collected from a total of 4702 Danish swine herds.
The right frame of the page conveniently lists contact information for the appropriate experts involved in the database development and curation, including medical director, submissions, testing, and website administrator.
Cases were defined as all farms reported to the SND between 1st January 2002 and 31st December 2005 and were and where at least one submission tested positive for scrapie.
The 666 farms that had been reported to the SND were classified as being either scrapie-positive when at least one submission tested positive (n = 411) or scrapie negative otherwise (n = 255).
By analyzing the systems submitted for QbE STD evaluation at due time (i.e., not considering the late submissions) on test data, system 1 achieved the best performance both in terms of MTWV and ATWV.
The combined submissions to test the influence of different metadata on the results were as follows: MetFrag+RT+Refs, MetFrag+CFM+RT+Refs, MetFrag+CFM+RT+Refs +MoNA, Combined_MS/MS+RT+Refs and finally Combined_MS/MS+RT+Refs+MoNA.
During the initial data management process, case submissions and test requests associated with semen specimens were dropped, as they were felt to represent herd monitoring for PRRSV instead of a disease investigation process.
To our knowledge, laboratory submission data (test requests) have not been evaluated before as a data source for syndromic surveillance.
The submission of test data on the new substance, however, is not required, although any available health and environmental information must be provided.
Forty counties were inclusive in the upper quartile for the number of submissions for testing, as well as all other independent land use variables.
