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No Change in US Pig Farm Samples Positive for Delta Corona Virus

22 September 2014

US - No new positive results for Porcine Delta Corona virus (PDCoV) have been detected in the US in the last week, so the total number of positive samples so far remains at 382 from pig farms in 17 states.

For the latest weekly report - for the week of 7 September in a report dated 17 September from the USDA Animal Health Inspection Service and made available by the American Association of Swine Veterinarians (AASV) - no pig farms (termed "swine accessions") have tested positive for the PDCoV. The cumulative total remains 382.

The National Animal Health Laboratory Network (NAHLN) began collating testing data on PDCoV for the week of 30 March 2014. So far, 5,827 accessions have been tested, 281 in the most recent week reported, so the overall percentage found positive is 6.6 per cent.

The total number of states affected remains at 17 (Table 1 and Figure 1).

Table 1. PDCoV summary by state
Test
week
Posi-
tive
acces-
sions
CAIAILINKSMIMNMOMTNCNEOHOKPASDTXWYUn-
known
30-Mar 25 - 3 4 1 - 4 6 - 1 - - 6 - - - - - -
6-Apr 32 - 4 2 7 - 2 5 - - - 1 7 - 1 1 1 - 1
13-Apr 29 - 5 8 4 - 1 7 - - 1 - 1 - 1 - - - 1
20-Apr 28 - 2 3 3 - - 10 1 - 1 1 3 - 3 - 1 - -
27-Apr 33 - 3 7 3 1 1 11 1 - 1 2 2 - - 1 - - -
4-May 41 - 3 10 5 - 2 6 1 - 4 2 5 - 1 1 - - 1
11-May 23 - 2 2 3 - - 8 - - - 2 3 - - 2 - - 1
18-May 19 - - 2 3 - 1 5 - - 1 - 3 - - 3 - - 1
25-May 15 - - 5 2 - - 4 - - 1 - 2 - 1 - - - -
1-Jun 22 - - 3 4 1 - 5 - 1 - - 4 1 - 2 - - 1
8-Jun 20 - - 2 1 - 1 4 2 - 1 2 1 - 2 3 - - 1
15-Jun 17 - 3 1 2 - - 3 1 - - - 4 - 1 1 - - 1
22-Jun 15 - 1 - 2 - - 3 - - - - 5 - 1 2 - - 1
29-Jun 8 - 2 - - - 1 1 1 - 1 - - - 1 - - - 1
6-Jul 17 - 7 1 1 - 1 5 - - - - 1 - 1 - - - -
13-Jul 14 1 2 1 2 - - 1 - - - - 5 - - 1 - 1 -
20-Jul 5 1 1 1 - - - 2 1 - - - - - - - - - -
27-Jul 8 - 2 - - - - 2 - - - - 2 - - - 2 - -
3-Aug 3 - - - - - - - 1 1 - 2 - - - - - - -
10-Aug 3 1 - 1 - - - - - - - - 1 - - - - - -
17-Aug 6 - 1 - 1 - 1 - 1 - - 2 - - - - - - -
24-Aug - - - - - - - - - - - - 1 - - - - - -
31-Aug - - - - - - - - - - - - - - - - - - -
7-Sep - - - - - - - - - - - - - - - - - - -
Total 382 3 41 53 43 2 15 87 9 2 11 14 56 1 13 17 4 1 10
*A single accession may include samples tested over more than one week; total accessions are calculated
as the distinct number of accessions tested rather than the sum of accessions tested by week.
AASV
Figure 1. PDCoV-positive samples from biological accessions (pig farms)

PDCoV was previously known as Swine Delta Corona virus (SDCv). It is related and causes similar effects to the virus that causes Porcine Epidemic Diarrhoea (PED).

Critical notes about these data are provided at the end of the original report from AASV.

ThePigSite News Desk

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