Chapter 8.13.

trichinellosis
(Trichinella spiralis)

Article 8.13.1.

Standards for diagnostic tests are described in the Terrestrial Manual.

Article 8.13.2.

A country or zone may be considered free from trichinellosis in domestic swine when:

1. trichinellosis is notifiable in the country;

2. there is in force an effective disease reporting system shown to be capable of capturing the occurrence of cases;

AND EITHER:

3. it has been ascertained that Trichinella infection does not exist in the domestic swine population of the country or zone under consideration; this is established by the regular surveillance of the swine population using an approved testing procedure, which provided negative results when:

   1. within a five-year period, a serological survey was conducted on a statistically based sample size from within the slaughter sow population sufficient to provide at least 95% confidence of detecting trichinellosis if it was present at a prevalence exceeding 0.02%, and

      during this five-year period, continuous testing was conducted on a statistically based sample size from within the annual slaughter swine population sufficient to provide at least 95% confidence of detecting trichinellosis if it is present at a prevalence exceeding 0.01%, following which:

   2. a serological survey is carried out every third year on the slaughter sow population sufficient to provide at least 95% confidence of detecting trichinellosis if it is present at a prevalence exceeding 0.2%; during this time the number of samples in the slaughter swine population could be reduced to detect at the 0.5% level on an annual basis;

OR

4. in the country or zone under consideration, the following conditions are met:

   1. trichinellosis has not been reported in the domestic swine population for at least 5 years;

   2. wild susceptible species are subjected to a regular surveillance programme, and no clinical, serological or epidemiological evidence of trichinellosis has been found;

5. the regular surveillance described in point 3 above is carried out and should be concentrated where infestation was last identified, and/or where the feeding of swill to swine occurs;

6. any suspicion of disease is followed at the field level by traceback, quarantine and laboratory testing;

7. if trichinellosis is confirmed, the infected premises remains under official control programme and is subjected to disease control measures using a stamping-out policy and rodent control;

8. all feeding of swill is officially regulated;

9. any human outbreaks of trichinellosis are investigated to determine the animal source.

Article 8.13.3.

Article 8.13.4.

Veterinary Authorities of importing countries should require the presentation of an international veterinary certificate attesting that the entire consignment of meat:

1. comes from domestic swine which have been slaughtered and inspected in an approved abattoir or wild swine which have been inspected;

AND

2. were subjected to a testing procedure for trichinellosis with negative results; or

3. comes from domestic swine which were born and bred in a country or zone free from trichinellosis in domestic swine; or

4. has been processed to ensure the destruction of all the larvae of the parasite.

Article 8.13.5.

Veterinary Authorities of importing countries may require the presentation of an international veterinary certificate attesting that the entire consignment of meat:

1. comes from equines slaughtered and/or inspected in an approved abattoir;

AND

2. were subjected to a testing procedure for trichinellosis with negative results; or

3. has been processed to ensure the destruction of all the larvae of the parasite.