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HEAL ▶▶▶TH


A picture from the CReSA-IR- TA research: PCV3 virus un- der a microscope, photo- graphed in a pig heart.


PHOTO: CRESA-IRTA


PCV3 – is it a virus to


worry about?


Porcine circovirus 2 (PCV2) is well known in the swine industry, but is there reason to worry about its cousin PCV3? At the Spanish research institute CReSA-IRTA a range of studies have been conducted lately. In short: there’s a good reason to keep an eye on it.


BY VINCENT TER BEEK, EDITOR PIG PROGRESS A


t least five studies were devoted to PCV3 at the European Symposium of Porcine Health Manage- ment (ESPHM) held recently, in mid-April 2021. At the event, held entirely digitally, the Spanish team


of CReSA-IRTA led by Dr Segalés and Dr Sibila presented new insights into this virus, which was discovered and described a few years ago. The team at CReSA-IRTA started working on PCV3 in late 2016, when they participated in a collaborative study with other European groups on the infection dynamics of PCV3.


Not much is known about PCV3 Not very much is known about PCV3, and few research groups focus on it. Researcher Dr Marina Sibila said to Pig Progress, “Overall, we know that this virus is ubiquitous and that it has been associated with several pathologic condi- tions. Among these conditions, the link between PCV3 and reproductive failure is gaining evidence. “However, we do not know, yet, the extent and frequency of this reproductive failure and, in consequence, its economic impact. In our opinion, this virus should definitely be includ- ed in the differential diagnosis of reproductive problems ob- served in the farm. This information will help us know if the


▶ PIG PROGRESS | Volume 37, No. 7, 2021 15


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