Diseases associated with porcine circovirus type 2
In the late 1970s, a virus was found, as a contaminant of some PK15 pig kidney cell lines, currently called porcine circovirus type I (PCV1), which proved not to be pathogenic in experimentally infected pigs. However, Circovirus type II (PCV2) was first isolated in 1998 in pigs with Post-weaning Multisystemic Weight Loss Syndrome (SMAP). Recently, PCV2 has been associated with several clinical syndromes, divided into pre and postnatal infections, causing reproductive problems in sows, and respiratory disease, as part of the Porcine Respiratory Complex, congenital tremor in suckling piglets and the syndrome of dermatitis and porcine nephropathy. (SDN). Other infections with which it has been associated are granulomatous enteritis, necrotizing lymphadenitis, and possibly exudative epidermis. The response to antibiotic treatments is not good and in some of the cases it can turn out to be negative, especially in those where the SMAP appears together with the SDN since when there are kidney lesions, the elimination of the injected substances can be altered. General injectable treatments should be avoided since they cause stress and the only thing that is achieved is to increase the losses due to heart failure. Vaccines to prevent the disease exist in some countries, and so far have shown very promising efficacy, showing a quite significant decrease in mortality, increasing the final weight, and decreasing the percentage of retarded pigs.
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| Format: | Digital revista |
| Language: | spa |
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Asociacion Latinoamericana de Produccion Animal
2020
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| Online Access: | https://ojs.alpa.uy/index.php/ojs_files/article/view/2732 |
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