Parasitic biobank of Plasmodium falciparum is almost germinal in Côte d’Ivoire. However, several high-level research topics on this parasite involve the taking into account of nature isolates but also chemo-sensitive or resistant reference strains for a better validation of results. In addition, acquisition of these reference strains is still arduous for laboratories in developing countries due to complexity of administrative procedures. For those reasons, this study aimed in to combine several procedures into a consolidated one in order to enhance the multiplication of P. falciparum reference strains. Continuous culture of plasmodial strains was based on the Trager and Jensen procedures. The CELL culture protocols used are those of the Swiss TPH described by Sergio Wittlin; the “Growing Plasmodium falciparum cultures at high parasitemia” and the “Stockholm sorbitol method” of Methods in Malaria Research-6th edition 2013; and the INV-01 and INV-02 procedures of the Worldwide Antimalarial Resistance Network (WWARN). Reference Plasmodium falciparum strains NF54 sensitive to chloroquine (CQs) and K1 resistant to chloroquine (CQr) were received from the Swiss Tropical Institute and Public Health (Swiss TPH). The CQs NF54 strain reacted more quickly to the protocol unlike the CQr K1 strain. Parasitic densities (DP) obtained with NF54 strain were ranged from 0.4% at day zero (D0) to 11.4% at day eight (D8). Strain K1 finally adapted successfully after one month of follow-up. Related DPs ranged from less than 0.1% to more than 20% in just three growth cycles after adaptation. A joint protocol (from this work) called “CRLP-SwissTPH-Pasteur_001” is available and allows to efficiently multiply reference strains NF54 and K1. It is planned to spread out the tests to other plasmodial strains as well as to wild isolates in order to standardize this procedure.

Mosquitoes have developed resistance, hence the need for anti-malarial medicines. This resistance calls for therapeutic an interest to therapeutic alternatives, including the medicinal plants. An ethnopharmacological survey was conducted amongst 15 Traditional Healers, recommended by the National Program for the Promotion of Traditional Medicine using semi-structured interviews in the city of Bouna. The ethnobotanical survey conducted in 2019 has enabled the identification of 32 plant species belonging to 30 genera and grouped into 19 families. The most represented families were Fabaceae (5 species) Anacardiaceae (4 species), Annonaceae (3 species), Rubiaceae, Zingiberaceae, Asteraceae, and Combretaceae with 2 species each. The species were mostly trees (63.63%). Leaves were the most frequently used parts of the plants (44.4%). The results of our investigations show that the most used mode is the decoction (42.22%). The oral route (60%) is the most used mode of administration. These species complete the non-exhaustive list of medicinal plants that the populations of Cote d'Ivoire use. It was found out that, people in this area commonly use medicinal plants with trust they have built on the curative outcome witnessed. However, this creates a further work to test for the antiplasmodial activity and to develop of Traditional Improved Medicines (MTAs).