Kinetic study of platelets and fibrinogen in Lassa virus-infected monkeys and early pathologic events in Mopeia virus-infected monkeys

J. V. Lange, S. W. Mitchell, J. B. McCormick, David Walker, B. L. Evatt, R. R. Ramsey

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

The rhesus monkey, an established model of Lassa fever, was used to study hematologic and hemostatic aspects of Lassa fever and whether Mopeia (also known as Mozambique) virus induces any cellular damage in this model. Six days after subcutaneous injection of 103.48 plaque forming units (PFU) of Lassa virus (Josiah strain) one group of monkeys received an intravenous injection of 111In-labeled allogeneic platelets and another group received 125I-labeled allogeneic fibrinogen. Lassa virus-infected monkeys developed a severe clinical illness with high viremia and typical pathology. Lassa antigen was found in most tissues using a Lassa nucleocapsid-specific monoclonal antibody. Platelet counts remained within normal limits. Platelet and fibrinogen kinetics were similar in infected and control animals. Hematologic and hemostatic changes indicate that disseminated intravascular coagulation plays no role in this model of Lassa fever. Levels of plasma fibronectin were reduced in Lassa-infected monkeys. Mopeia virus-infected monkeys were normothermic, aviremic, and there was no detection of Mopeia antigen in any tissues using polyclonal or monoclonal antibodies. Mopeia virus was recovered from the spleen of one monkey. Mopeia virus was associated with hepatocellular and renal tubular damage.

Original languageEnglish (US)
Pages (from-to)999-1007
Number of pages9
JournalAmerican Journal of Tropical Medicine and Hygiene
Volume34
Issue number5
StatePublished - 1985
Externally publishedYes

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Lassa virus
Lassa Fever
Fibrinogen
Haplorhini
Blood Platelets
Viruses
Hemostatics
Monoclonal Antibodies
Mozambique
Antigens
Nucleocapsid
Disseminated Intravascular Coagulation
Viremia
Subcutaneous Injections
Macaca mulatta
Platelet Count
Fibronectins
Intravenous Injections
Spleen
Pathology

ASJC Scopus subject areas

  • Parasitology
  • Infectious Diseases

Cite this

Kinetic study of platelets and fibrinogen in Lassa virus-infected monkeys and early pathologic events in Mopeia virus-infected monkeys. / Lange, J. V.; Mitchell, S. W.; McCormick, J. B.; Walker, David; Evatt, B. L.; Ramsey, R. R.

In: American Journal of Tropical Medicine and Hygiene, Vol. 34, No. 5, 1985, p. 999-1007.

Research output: Contribution to journalArticle

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AU - Walker, David

AU - Evatt, B. L.

AU - Ramsey, R. R.

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