Per the Swine Health Information Center (SHIC) December global disease monitoring report, November was another challenging month for the Chinese authorities and swine industry, as there was a significant expansion of the African swine fever (ASF) epidemic, continuing its southward spread into six new provinces. Eyes are also on Japan where a second case of classical swine fever (CSF) was reported. Read the entire global disease monitoring report here. In November, SHIC’s domestic disease reporting followed expectations with few exceptions including an increase in porcine reproductive and respiratory virus (PRRSV) and porcine delta corona virus (PDCoV) PCR positive tests. Porcine epidemic diarrhea virus (PEDV) was at predicted levels. You can read the entire domestic disease monitoring report here.
Domestically, PRRSV monitoring showed a trend to increasing positivity in adult/sow and unknown categories. The spike in PDCoV PCR positive tests was noted but only a limited number of transmissible gastro enteritis cases. Accession ID cases investigated for central nervous system (CNS) issues rose with nearly 9 percent more in November 2018 than the same month in 2017. The number of cases per agent have similar distribution this fall, compared to the same season of previous years. Streptoccocus suis is still the major agent causing CNS. Detection of influenza A (IAV) as a single agent was less frequently detected in 2018 than previous Fall seasons of 2017 and 2016. Complete details on the report can be found on the SHIC website by clicking here.
In the global report, it was stated on November 30, the European Food Safety Authority (EFSA) published three reports updating the ASF epidemiological situation in their region. In these reports, experts have assessed the effectiveness of wild boar control measures in the region including intensive hunting around the buffer area, quick and safe carcass removal, and fencing. Also, in mid-November, Japan reported the second outbreak of CSF on a farm in Gifu prefecture since last September, when the first case of the disease since its eradication (2007) was reported by the country. Several cases in wild boar were reported as follow ups in these last three months. Complete details on the report can be found on the SHIC website by clicking here.
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