Browsing by UP Author "Swanepoel, Robert"

Browsing by UP Author "Swanepoel, Robert"

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  • Anomalous high rainfall and soil saturation as combined risk indicator of Rift Valley fever outbreaks, South Africa, 2008–2011 
    Williams, Roy; Malherbe, Johan; Weepener, Harold; Majiwa, Phelix; Swanepoel, Robert (Centers for Disease Control & Prevention, 2016-12)
    Rift Valley fever (RVF), a zoonotic vectorborne viral disease, causes loss of life among humans and livestock and an adverse effect on the economy of affected countries. Vaccination is the most effective way to protect ...
  • Biosafety standards for working with Crimean-Congo hemorrhagic fever virus 
    Weidmann, M.; Avsic-Zupanc, T.; Bino, S.; Bouloy, M.; Burt, F.; Chinikar, S.; Christova, I.; Dedushaj, I.; El-Sanousi, A. A.; Eladi, N.; Weber, F.; Hewson, R.; Hufert, F.; Humolli, I.; Koçak Tufan, Z.; Korukluoglu, G.; Leyssen, P.; Mirazimi, A.; Neyts, J.; Niedrig, M.; Ozkul, A.; Papa, A.; Paweska, Janusz Tadeusz; Sall, A. A.; Schmaljohn, C.; Swanepoel, Robert; Jansen van Vuren, P.; Uyar, Y.; Zeller, H. (Society for General Microbiology, 2016-11)
    In countries from which Crimean-Congo haemorrhagic fever (CCHF) is absent, the causative virus CCHF virus (CCHFV) is classified as a hazard group 4 agent and handled in containment level 4. In contrast, most endemic ...
  • Clinical features and patient management of Lujo hemorrhagic fever 
    Sewlall, Nivesh H.; Richards, Guy A.; Duse, Adriano; Swanepoel, Robert; Paweska, Janusz Tadeusz; Blumberg, Lucille Hellen; Dinh, Thu-Ha; Bausch, Daniel (Public Library of Science, 2014-11-13)
    BACKGROUND : In 2008 a nosocomial outbreak of five cases of viral hemorrhagic fever due to a novel arenavirus, Lujo virus, occurred in Johannesburg, South Africa. Lujo virus is only the second pathogenic arenavirus, after ...
  • Cloning and expression of Rift Valley fever virus nucleocapsid (N) protein and evaluation of a N-protein based indirect ELISA for the detection of specific IgG and IgM antibodies in domestic ruminants 
    Fafetine, Jose Manuel; Tijhaar, Edwin; Paweska, Janusz Tadeusz; Das Neves, Luis Carlos Bernardo G.; Hendriks, Judith; Swanepoel, Robert; Coetzer, Jacobus A.W.; Egberink, Herman F.; Rutten, Victor P.M.G. (Elsevier, 2007-03-31)
    Serodiagnosis of Rift Valley fever (RVF) currently relies on the use of live or inactivated whole virus as antigens. The recombinant nucleocapsid (N) protein of RVF virus was tested for diagnostic applicability in an ...
  • Comparative analysis of the L, M, and S RNA segments of Crimean-Congo haemorrhagic fever virus isolates from southern Africa 
    Goedhals, Dominique; Bester, P.A.; Paweska, Janusz Tadeusz; Swanepoel, Robert; Burt, F.J. (Wiley, 2015-05)
    Crimean–Congo haemorrhagic fever virus (CCHFV) is a member of the Bunyaviridae family with a tripartite, negative sense RNA genome. This study used predictive software to analyse the L (large), M (medium), and S (small) ...
  • Crimean-Congo haemorrhagic fever presenting with undiagnosed chronic myeloid leukaemia 
    Coetzee, Marius J.; Blumberg, Lucille Hellen; Paweska, Janusz Tadeusz; Leman, Pat; Swanepoel, Robert; De Kock, Andre (Medpharm Publications, NISC (Pty) Ltd, Taylor and Francis, and Informa business, 2017)
    A patient with Crimean-Congo haemorrhagic fever (CCHF) presented with a high white cell count and splenomegaly. Underlying chronic myeloid leukaemia was diagnosed. The management of this complex case was difficult, and ...
  • Detection of African swine fever virus in ornithodoros tick species associated with indigenous and extralimital warthog populations in South Africa 
    Craig, Anthony Francis; Schade-Weskott, Mathilde L.; Rametse, Thapelo; Heath, Livio; Kriel, Gideon J.P.; De Klerk-Lorist, Lin-Mari; Van Schalkwyk, Louis; Trujillo, Jessie D.; Crafford, Jan Ernst; Richt, Juergen A.; Swanepoel, Robert (MDPI, 2022-07-26)
    We investigated the possibility that sylvatic circulation of African swine fever virus (ASFV) in warthogs and Ornithodoros ticks had extended beyond the historically affected northern part of South Africa that was declared ...
  • Detection of Rift Valley fever virus in Aedes (Aedimorphus) durbanensis, South Africa 
    Van den Bergh, Carien; Thompson, P.N. (Peter N.); Swanepoel, Robert; Almeida, Antonio Paulo Gouveia; Paweska, Janusz Tadeusz; Van Vuren, Petrus Jansen; Wilson, William C.; Kemp, Alan; Venter, Estelle Hildegard (MDPI, 2022-01-21)
    Rift Valley fever virus (RVFV) is a mosquito-borne, zoonotic phlebovirus-causing disease in domestic ruminants and humans in Africa, the Arabian Peninsula and some Indian Ocean islands. Outbreaks, characterized by abortion ...
  • Development and analytical validation of a group-specific RT-qPCR assay for the detection of the Simbu serogroup orthobunyaviruses 
    Camarão, A.A.R.; Swanepoel, Robert; Boinas, F.; Quan, Melvyn (Elsevier, 2019-09)
    The Simbu serogroup within the genus Orthobunyavirus belongs to the family Peribunyaviridae and comprises 32 recognised three-segmented negative-sense single-stranded RNA viruses, with a cosmopolitan distribution. This ...
  • Development and evaluation of a real-time reverse transcription-loop-mediated isothermal amplification assay for rapid detection of Rift Valley fever virus in clinical specimens 
    Le Roux, C.A. (Chantel Anne); Kubo, T.; Grobbelaar, Antoinette A.; Jansen van Vuren, Petrus; Weyer, Jacqueline; Nel, Louis Hendrik; Swanepoel, Robert; Morita, K.; Paweska, Janusz Tadeusz (American Society for Microbiology, 2009-03)
    This paper reports on the development and validation of a real-time reverse transcription-loop-mediated isothermal amplification assay (RT-LAMP) targeting the genomic large RNA segment of Rift Valley fever virus (RVFV). ...
  • Epidemiology of human rabies in South Africa, 1983-2007 
    Weyer, Jacqueline; Szmyd-Potapczuk, Anna Victoria; Blumberg, Lucille Hellen; Leman, Patricia A.; Markotter, Wanda; Swanepoel, Robert; Paweska, Janusz Tadeusz; Nel, Louis Hendrik (Elsevier, 2011-01)
    Rabies remains a global public health problem but increasingly so in the developing world. Given a lack of awareness, priority and diagnostic capability, very few developing countries, especially in Africa, report on ...
  • Extension of sylvatic circulation of African swine fever virus in extralimital warthogs in South Africa 
    Craig, Anthony Francis; Schade-Weskott, Mathilde L.; Harris, Henry J.; Heath, Livio; Kriel, Gideon J. P.; De Klerk-Lorist, Lin-Mari; Van Schalkwyk, Louis; Buss, Peter Erik; Crafford, Jan Ernst; Richt, Juergen A.; Swanepoel, Robert (Frontiers Research Foundation, 2021-11-24)
    Sylvatic circulation of African swine fever virus (ASFV) in warthogs and Ornithodoros ticks that live in warthog burrows historically occurred in northern South Africa. Outbreaks of the disease in domestic pigs originated ...
  • Filovirus RefSeq entries : evaluation and selection of Filovirus type variants, type sequences, and names 
    Kuhn, Jens H.; Andersen, Kristian G.; Bao, Yiming M.; Bavari, Sina; Becker, Stephan; Bennett, Richard S.; Bergman, Nicholas H.; Blinkova, Olga; Bradfute, Steven; Brister, J. Rodney; Bukreyev, Alexander A.; Chandran, Kartik; Chepurnov, Alexander A.; Davey, Robert A.; Dietzgen, Ralf G.; Doggett, Norman A.; Dolnik, Olga; Dye, John M.; Enterlein, Sven; Fenimore, Paul W.; Formenty, Pierre; Freiberg, Alexander N.; Garry, Robert F.; Garza, Nicole L.; Gire, Stephen K.; Gonzalez, Jean-Paul; Griffiths, Anthony; Happi, Christian T.; Hensley, Lisa E.; Herbert, Andrew S.; Hevey, Michael C.; Hoenen, Thomas; Honko, Anna N.; Ignatyev, Georgy M.; Jahrling, Peter B.; Johnson, Joshua C.; Johnson, Karl M.; Kindrachuk, Jason; Klenk, Hans-Dieter; Kobinger, Gary; Kochel, Tadeusz J.; Lackemeyer, Matthew G.; Lackner, Daniel F.; Leroy, Eric M.; Lever, Mark S.; Muhlberger, Elke; Netesov, Sergey V.; Olinger, Gene G.; Omilabu, Sunday A.; Palacios, Gustavo; Panchal, Rekha G.; Park, Daniel J.; Patterson, Jean L.; Paweska, Janusz Tadeusz; Peters, Clarence J.; Pettitt, James; Pitt, Louise; Radoshitzky, Sheli R.; Ryabchikova, Elena I.; Saphire, Erica Ollmann; Sabeti, Pardis C.; Sealfon, Rachel; Shestopalov, Aleksandr M.; Smither, Sophie J.; Sullivan, Nancy J.; Swanepoel, Robert; Takada, Ayato; Towner, Jonathan S.; Van der Groen, Guido; Volchkov, Viktor E.; Volchkova, Valentina A.; Wahl-Jensen, Victoria; Warren, Travis K.; Warfield, Kelly L.; Weidmann, Manfred; Nichol, Stuart T. (MDPI Publishing, 2014)
    Sequence determination of complete or coding-complete genomes of viruses is becoming common practice for supporting the work of epidemiologists, ecologists, virologists, and taxonomists. Sequencing duration and costs are ...
  • Genetic determinants of virulence in pathogenic lineage 2 West Nile virus strains 
    Botha, Elizabeth Magdelena; Markotter, Wanda; Wolfaardt, Marianne; Paweska, Janusz Tadeusz; Swanepoel, Robert; Palacios, Gustavo; Nel, Louis Hendrik; Venter, Marietjie (Coordinating Center for Infectious Diseases, Centers for Disease Control and Prevention, 2008-02)
    We determined complete genome sequences of lineage 2 West Nile virus (WNV) strains isolated from patients in South Africa who had mild or severe WNV infections. These strains had previously been shown to produce either ...
  • Genome sequence analysis of in vitro and in vivo phenotypes of Bunyamwera and Ngari virus isolates from Northern Kenya 
    Odhiambo, Collins; Venter, Marietjie; Limbaso, Konongoi; Swanepoel, Robert; Sang, Rosemary; Aguilar, Patricia V. (Public Library of Science, 2014-08-25)
    Biological phenotypes of tri-segmented arboviruses display characteristics that map to mutation/s in the S, M or L segments of the genome. Plaque variants have been characterized for other viruses displaying varied ...
  • Genome sequences of Crimean-Congo hemorrhagic fever virus strains isolated in South Africa, Namibia, and Turkey 
    Zivcec, Marko; Albarino, Cesar G.; Guerrero, Lisa I. W.; Ksiazek, Thomas G.; Nichol, Stuart T.; Swanepoel, Robert; Rollin, Pierre E.; Spiropoulou, Christina F. (American Society for Microbiology, 2017-10-19)
    We report here the full-length sequences of 16 historical isolates of Crimean-Congo hemorrhagic fever orthonairovirus (CCHFV) obtained in Turkey, Namibia, and South Africa. The strains may be useful for future work to ...
  • High prevalence of IgG antibodies to Ebola virus in the Efé pygmy population in the Watsa region, Democratic Republic of the Congo 
    Mulangu, Sabue; Borchert, Matthias; Paweska, Janusz; Tshomba, Antoine; Afounde, Afongenda; Kulidri, Amayo; Swanepoel, Robert; Muyembe-Tamfum, Jean-Jacques; Van der Stuyft, Patrick (BioMed Central, 2016-06-10)
    BACKGROUND : Factors related to the natural transmission of Ebola virus (EBOV) to humans are still not well defined. Results of previous sero-prevalence studies suggest that circulation of EBOV in human population is ...
  • High seroconversion rate to Rift Valley fever virus in cattle and goats in far northern KwaZulu-Natal, South Africa, in the absence of reported outbreaks 
    Van den Bergh, Carien; Venter, Estelle Hildegard; Swanepoel, Robert; Thompson, P.N. (Peter N.) (Public Library of Science, 2019-05-03)
    BACKGROUND : Rift Valley fever (RVF) is a mosquito-borne zoonotic disease characterized in South Africa by large epidemics amongst ruminant livestock at very long, irregular intervals, mainly in the central interior. ...
  • Human-pathogenic Kasokero virus in field-collected ticks 
    Schuh, Amy J.; Amman, Brian R.; Pate, Ketan; Sealy, Tara K.; Swanepoel, Robert; Towner, Jonathan S. (Centers for Disease Control and Prevention, 2020-12)
    Kasokero virus (KASV; genus Orthonairovirus) was first isolated in 1977 at Uganda Virus Research Institute from serum collected from Rousettus aegyptiacus bats captured at Kasokero Cave, Uganda. During virus characterization ...
  • Indirect enzyme-linked immunosorbent assay for the detection of antibody against Rift Valley fever virus in domestic and wild ruminant sera 
    Paweska, Janusz Tadeusz; Swanepoel, Robert; Williams, R.; Cohen, A.S.; Grobbelaar, Antoinette A.; Croft, J.E.; Gerdes, Gertruida Hermanna; Wright, Isabel M.; Van Dijk, A.A.; Smith, S.J.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2003)
    An indirect enzyme-linked immunosorbent assay (I-ELISA) for the detection of specific IgG immunoglobulins against Rift Valley fever virus (RVFV) was validated in-house. A total of 3055 sera from sheep (n = 1 159), goats ...