Austria is one of those European countries
where Mycobacterium avium subspecies paratuberculosis(Map) infection
in cattle was given the status of a notifiable disease. In April
2006 control of paratuberculosis was based on a new ordinance,
focused on the eradication of clinically affected cattle, sheep,
goats and farmed deer. The costs for laboratory diagnosis and
indemnity for the destruction of paratuberculosis diseased animals
are provided by the Austrian government.
Objective of this regulation is the detection
and eradication of clinically diseased animals, which are the main
source for further infections with MAP.
Clinically suspicious animals are tested by ELISA for MAP specific
antibodies in blood samples and by Realtime PCR for MAP specific
DNA from feces or tissue samples in cases of culled or perished
animals.
Samples from 103 farms were sent to the National
Reference Laboratory for paratuberculosis within the first year
since the implementation of the paratuberculosis regulation. In 36
farms the clinically suspicious cases were confirmed by laboratory
examinations. The significantly most affected breed was
Limousin.
Further examinations for molecular typing of isolated MAP strains
will be carried out for epidemiological investigations.