In vitro Anti-Herpes simplex Type-1 Virus Evaluation of Extracts from Kenya Grown Pyrethrum (Chrysanthemum cinerariaefolium) Journal title: European Journal of Medicinal Plants Authors: Simon Alem, Festus M. Tolo, Nicholas Adipo, Peter G. Mwitari, Ngetich K. Japheth, Anselimo O. Makokh... Subject(s):