Evaluation of copromicroscopy, multiplex-qPCR and antibody serology for monitoring of human ascariasis in endemic settings by Mugo, RM, Rausch, S, Musimbi, ZD, Strube, C, Raulf, M, Landt, O, Gichuki, PM, Ebner, F, Mwacharo, J, Odiere, MR, Ndungu, FM, Njomo, DW, Hartmann, S