[1] Sch Lab Tech Yaounde, Microbiol Immunol, Yaounde, Center Region, Cameroon
[2] FMBS Univ Yaounde, Cameroon, Cameroon
[3] Univ Yaounde, Antimicrobial & Biocontrol Agent Unit, Yaounde, Cameroon
[4] Univ Douala, Internal Med, Douala, Cameroon
[5] Univ Yaounde, Immunol, Yaounde, Cameroon
[6] Rand D Prod, Biohit Healthcare, Helsinki, Finland
[7] SMW Consultants Ltd, Helsinki, Finland