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Persistence of Lassa Virus Associated With Severe Systemic Arteritis in Convalescing Guinea Pigs (Cavia porcellus)
Ist Teil von
The Journal of infectious diseases, 2019-05, Vol.219 (11), p.1818-1822
Ort / Verlag
US: Oxford University Press
Erscheinungsjahr
2019
Link zum Volltext
Quelle
Oxford Journals 2020 Medicine
Beschreibungen/Notizen
Abstract
Lassa fever (LF) survivors develop various clinical manifestations including polyserositis, myalgia, epididymitis, and hearing loss weeks to months after recovery from acute infection. We demonstrate a systemic lymphoplasmacytic and histiocytic arteritis and periarteritis in guinea pigs more than 2 months after recovery from acute Lassa virus (LASV) infection. LASV was detected in the arterial tunica media smooth muscle cells by immunohistochemistry, in situ hybridization, and transmission electron microscopy. Our results suggest that the sequelae of LASV infection may be due to virus persistence resulting in systemic vascular damage. These findings shed light on the pathogenesis of LASV sequelae in convalescent human survivors.
Lassa virus persistence in the arterial tunica media smooth muscle cells is associated with systemic lymphoplasmacytic and histiocytic arteritis and periarteritis in convalescent guinea pigs after recovery from acute Lassa fever disease.