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Histologically, the lesions consisted of angioblastic endothelial cells and immature capillary vascular structures coursing through the edematous myxomatous dermis and subcutis. Proliferating capillaries often were surrounded by large and foamy macrophages that stained positively for PRRSV by immunohistochemistry. The sudden appearance of these vascular lesions during the PRRSV outbreak and their abrupt disappearance after the abortion storm, along with the immunohistochemical localization of PRRSV-positive macrophages adjacent to the proliferating capillaries, suggest that PRRSV likely played a role in the development of these unusual lesions. <\/jats:p>","DOI":"10.1354\/vp.38-3-339","type":"journal-article","created":{"date-parts":[[2003,4,24]],"date-time":"2003-04-24T20:18:12Z","timestamp":1051215492000},"page":"339-342","source":"Crossref","is-referenced-by-count":8,"title":["Proliferative Vasculopathy and Cutaneous Hemorrhages in Porcine Neonates Infected with the Porcine Reproductive and Respiratory Syndrome Virus"],"prefix":"10.1177","volume":"38","author":[{"given":"D. W.","family":"Scruggs","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S. 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