Molecular detection and characterization of highly pathogenic porcine reproductive and respiratory syndrome virus from a natural outbreak in wild pigs, Mizoram, India

Author(s):  
Tridib Kumar Rajkhowa ◽  
Lalnunthanga Lalnunthanga ◽  
Lalthapui Hauhnar ◽  
Doris Zodinpui ◽  
Madhuri Subbiah
2015 ◽  
Vol 89 (20) ◽  
pp. 10712-10716 ◽  
Author(s):  
Kuan Zhao ◽  
Chao Ye ◽  
Xiao-Bo Chang ◽  
Cheng-Gang Jiang ◽  
Shu-Jie Wang ◽  
...  

In China, a majority of the highly pathogenic porcine reproductive and respiratory syndrome (HP-PRRSV) strains were seeded by the 2006 outbreak. However, the most recently emerged (2013-2014) HP-PRRSV strain has a very different genetic background. It is a NADC30-like PRRSV strain recently introduced from North America that has undergone genetic exchange with the classic HP-PRRSV strains in China. Subsequent isolation and characterization of this variant suggest high pathogenicity, so it merits special attention in control and vaccine strategies.


2012 ◽  
Vol 160 (3-4) ◽  
pp. 455-462 ◽  
Author(s):  
Yuli He ◽  
Gang Wang ◽  
Yonggang Liu ◽  
Wenda Shi ◽  
Zifeng Han ◽  
...  

Animals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2274
Author(s):  
Haley E. Rymut ◽  
Laurie A. Rund ◽  
Courtni R. Bolt ◽  
Maria B. Villamil ◽  
Bruce R. Southey ◽  
...  

Weaning stress can elicit changes in the metabolic, hormone and immune systems of pigs and interact with prolonged disruptions stemming from maternal immune activation (MIA) during gestation. The present study advances the characterization of the combined effects of weaning stress and MIA on blood chemistry, immune and hormone indicators that inform on the health of pigs. Three-week-old female and male offspring of control gilts or gilts infected with the porcine reproductive and respiratory syndrome virus were allocated to weaned or nursed groups. The anion gap and bilirubin profiles suggest that MIA enhances tolerance to the effects of weaning stress. Interleukin 1 beta and interleukin 2 were highest among weaned MIA females, and cortisol was higher among weaned relative to nursed pigs across sexes. Canonical discriminant analysis demonstrated that weaned and nursed pigs have distinct chemistry profiles, whereas MIA and control pigs have distinct cytokine profiles. The results from this study can guide management practices that recognize the effects of the interaction between MIA and weaning stress on the performance and health of pigs.


2021 ◽  
Vol 199 ◽  
pp. 106383
Author(s):  
Innina R. Mananguit ◽  
Nest Dale F. Bartolome ◽  
Gabriel Alexis S.P. Tubalinal ◽  
Claro N. Mingala

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