Danai Tavonga Zhou

Institute of Clinical Medicine, University in Oslo, Oslo University Hospital, P.O. Box 1171, Blindern, 0318 Oslo, Norway
University of Zimbabwe, College of Health Sciences, Department of Medical Laboratory Sciences, P. O. Box AV 178, Avondale, Harare, Zimbabwe

Olav Oktedalen

Department of Infectious Diseases, Oslo University Hospital, P.O. Box 4950, Nydalen, 0424, Oslo, Norway

Tawanda Chisango

Chinhoyi University of Technology, PO Box 7724, Chinhoyi, Zimbabwe

Babill Stray-Pedersen

Institute of Clinical Medicine, University in Oslo, Oslo University Hospital, P.O. Box 1171, Blindern, 0318 Oslo, Norway