TY - JOUR
T1 - Rapid detection and high occurrence of porcine rotavirus A, B, and C by RT-qPCR in diagnostic samples
AU - Marthaler, Douglas
AU - Homwong, Nitipong
AU - Rossow, Kurt
AU - Culhane, Marie
AU - Goyal, Sagar
AU - Collins, James
AU - Matthijnssens, Jelle
AU - Ciarlet, Max
N1 - Publisher Copyright:
© 2014 Elsevier B.V.
PY - 2014/9/4
Y1 - 2014/9/4
N2 - Rotaviruses are important cause of diarrhea in animals, including humans. Currently, rotavirus species A, B, C, E, and H (RVA-RVC, RVE, and RVH) have been identified in pigs. Traditionally, RVA has been considered the primary cause of diarrhea in pigs, and RVB and RVC had been described sporadically in pigs until recently. Qualitative porcine RVA, RVB, and RVC RT-PCR (RT-qPCR) assays were designed and 7508 porcine diarrheic samples, submitted to University of Minnesota, were tested to estimate the percentage of RVA, RVB, and RVC over a period of approximately 2 years (from 2009 to 2011). The individual RVA and RVC RT-qPCR assays were multiplex into a single RT-qPCR while the RVB RT-qPCR assay remained as an individual RT-qPCR. In total, 83% of the samples were positive for RVA, RVB, or RVC. As expected, RVA was detected at the highest overall percentage (62%). However, 33% and 53% of the samples were positive for RVB and RVC, respectively, indicating that both RVB and RVC are also epidemiologically important in the swine population. RVC was most predominant in young pigs (1-20 days of age), while RVA and RVB were most predominant in ≥21 day old pigs. As diagnostic tools, the developed RT-qPCR assays could successfully discriminate among infecting RV species, which could lead to better surveillance and epidemiological studies for ultimately better prevention and control strategies.
AB - Rotaviruses are important cause of diarrhea in animals, including humans. Currently, rotavirus species A, B, C, E, and H (RVA-RVC, RVE, and RVH) have been identified in pigs. Traditionally, RVA has been considered the primary cause of diarrhea in pigs, and RVB and RVC had been described sporadically in pigs until recently. Qualitative porcine RVA, RVB, and RVC RT-PCR (RT-qPCR) assays were designed and 7508 porcine diarrheic samples, submitted to University of Minnesota, were tested to estimate the percentage of RVA, RVB, and RVC over a period of approximately 2 years (from 2009 to 2011). The individual RVA and RVC RT-qPCR assays were multiplex into a single RT-qPCR while the RVB RT-qPCR assay remained as an individual RT-qPCR. In total, 83% of the samples were positive for RVA, RVB, or RVC. As expected, RVA was detected at the highest overall percentage (62%). However, 33% and 53% of the samples were positive for RVB and RVC, respectively, indicating that both RVB and RVC are also epidemiologically important in the swine population. RVC was most predominant in young pigs (1-20 days of age), while RVA and RVB were most predominant in ≥21 day old pigs. As diagnostic tools, the developed RT-qPCR assays could successfully discriminate among infecting RV species, which could lead to better surveillance and epidemiological studies for ultimately better prevention and control strategies.
KW - Enteric pathogen
KW - Real time RT-qPCR
KW - Rotavirus A
KW - Rotavirus B
KW - Rotavirus C
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U2 - 10.1016/j.jviromet.2014.08.018
DO - 10.1016/j.jviromet.2014.08.018
M3 - Article
C2 - 25194889
AN - SCOPUS:84911901764
SN - 0166-0934
VL - 209
SP - 30
EP - 34
JO - Journal of Virological Methods
JF - Journal of Virological Methods
ER -