This work was carried out at the International Institute of Tropical Agriculture (IITA), Yaoundé Nkol bisson. Ten improved and four local cultivars of taro were used to carry out a pathogenicity test of Phytophthora colocasiae isolates from which one virulent isolate from both improved cultivar BL/SM123, and BL/SM120, were selected and subsequently used in determining the effect of Original Research Article media, temperature, pH, and light on growth parameters-mycelia growth and spores density. There was a significant difference (P ≤ 0.05) on the growth media for the optimal fungal growth parameters. The most appropriate media for mycelia growth and spores production were V6 and V8 juice agar. The optimum temperature for mycelia growth and spore density was 24°C and also optimum pH value for spores production was 6. The selection of the best growth medium was important to screen the fungal pathogen for virulence and potential field pathogenicity testing. Incubation in both light and dark was best for mycelia growth and sporulation.

The popularity of doping in competitive sports is relevant for all those involved in sports, particularly for evaluating anti-doping policy measures. However, there is a gap of information that addresses this subject so far. As a consequence, the prevalence of doping in competitive sports in resource limited countries is unknown. Even though it is challenging to uncover the exact prevalence of herbal products with prohibited activity such as doping, various methods put in place by world antidoping agency (WADA) have now been adopted to uncover parts of this particular problem, and enables the circumvention to some extend the issues of honesty, definition problems and the limits of pharmacological evidence. It is evident that current doping control test results can show a distinct underestimation of true doping prevalence in low middle income countries (LMIC). Nowadays, doping is a critical issue at international levels of sporting competitions. Athletes’ use of herbal supplements has seen a significant increase in the past two decades. At the top of the list of popular herbs used in sports are echinacea and ginseng, whereas garlic, St. John’s wort, soybean, ephedra and others are also gaining popularity or have been historically prevalent. Despite the increasing popularity of herbal supplements, recent events have illustrated possible concerns regarding efficacy and safety of herbal supplements usage. Remarkable sports performances at the end of the 20th century raised suspicions about herbal supplement use by athletes, prompting the formation of WADA. With WADA creation it was not long when the deaths of two professional athletes raised concerns that the herbal supplement ephedra, may have contributed to their deaths. These events and others have prompted clinicians and scientists to reexamine and evaluate the role of herbal supplements in competitive sports. This review attempts to give an insight into the use of herbal supplement in doping within the concept of play clean to win clean. An attempt has been made to provide guidance on the efficacy and side effect of most used herbal supplements found in sporting activities, especially in international competitive sports.

The drug discovery and development processes are designed to guarantee that drugs are efficacious, nontoxic and of high standards of quality for human consumption. However, patient’s population with access to drugs at approval is only a fraction of the final target population. Therefore, a thorough understanding of the safety of medicines is generally only achieved after the marketing authorization of the drug, followed by pharmacovigilance or post marketing surveillance. Pharmacovigilance (PHV) is defined by WHO as “the science and activities that deals with the detection, assessment, understanding and prevention of the adverse drug reactions or any other possible drug-related interactions”. Health professionals, patients, drug manufacturers and drug regulatory authorities are therefore highly involved in the practice of PHV. Cameroon imports 95 % of drugs and health care products. Therefore, an effective mastery of the knowledge, attitude and practice of PHV will help to elaborate the development of our pharmacovigilance systems. This paper gives an overview of pharmacovigilance in Cameroon for unlocking the drug development process focusing on the past, present and future.