CoV, Coronavirus; PDCoV, porcine deltacoronavirus; PEAV, porcine enteric alphacoronavirus; PEDV
, porcine epidemic diarrhea virus; PHEV, porcine hemagglutinating encephalomyelitis virus; PRCV, porcine respiratory Coronavirus; SARS, severe acute respiratory syndrome; TGEV, transmissible gastroenteritis virus.
The impact of PEDV
infection on the reproductive performance of gilts and sows depends on the period of pregnancy, during which females are exposed to the pathogen and the parity number (Lin et al.
coli or PEDV
but they are still critical enteric coronaviruses in swine industry.
Mild forms of PEDV
have been seen in Wales in previous years," said Charlie Morris, of HCC.
Accompanying a study of recent porcine epidemic diarrhea cases in Germany caused by a new PEDV
Indel strain (2), we retrospectively analyzed fecal samples from pigs that showed typical clinical symptoms of a PEDV
The group reiterated that PEDV
is not a human health or food safety issue and agreed the virus is of Asian origin genetically, but its direct pathway to North America remains unknown.
During 2007-2014, we collected 27 fecal and 24 intestinal samples from pigs with suspected PEDV
or TGEV infections; the pigs came from swine farms in northern Italy (Po Valley), which contains the regions of Piemonte, Lombardia, Emilia Romagna, and Veneto (online Technical Appendix Figure 1, http://wwwnc.
In May 2014, an outbreak of PED among pigs in the finishing stage of growth was reported in Germany and associated with a PEDV
strain very similar to the OH851 variant of PEDV
All samples (30 intestine samples of dead piglets and 16 fecal swabs) were found to be PEDV
At this institution, 2 fecal samples with high genome load, as determined by 2 independent, published (8,9) reverse transcription quantitative PCRs selective for PEDV
nucleocapsid (N) and spike (S) genes, were chosen for routine virologic testing and next-generation sequencing.
We examined PEDV
replication in a newly established immortalized duck intestinal epithelial cell (MK-DIEC) line, which was generated from the intestinal tissues of a 19- day-old white Pekin duck embryo.
causes an acute and highly contagious enteric disease characterized by severe diarrhea, dehydration, and a high death rate in pigs that results in substantial economic losses in the swine industry (1).