By Prof Samuel Wanji & Pamela Bongkiyung
This post continues the discussion with Prof. Wanji on the strides undertaken towards the control of Onchocerciasis.
In this segment, he discusses his hopes for a drug that could not only work against Onchocerciasis but also Loa Loa without causing harm to the human host. He highlights the foundation he has laid down to help the next generation of parasitologists, empowering them to seek solutions to problems endemic to their respective environments.
Question: Understanding that we have just the one tool, does it complicate matters or make it worse that there is Loa Loa in all of this to deal with?
Prof. Wanji: Of course because that tool presents a problem with Loa Loa. Just because it is one tool remains a problem but the fact that in some areas you cannot use it, makes it more difficult. It presents a double problem and sometimes people often talk of double penalty with regards to Loa Loa. That is something which was discovered recently that the area where Loa Loa exists, the tool which was being used to map Lymphatic Filariasis can have false positivity. It can be positive not because of Lymphatic Filariasis but because of Loa Loa. Loa Loa has been inflicting a double penalty for the control of lymphatic filariasis and onchocerciasis in the central African region.
Q: Is there a drug to mitigate Loa Loa as well as Onchocerciasis without causing any adverse reactions. It appears there isn’t the one stone that can kill two birds but is there one that can kill each bird at a time?
Prof. Wanji: Unfortunately we do not have a drug that can kill Loa Loa safely for now. That is a major problem. In our laboratory, we are trying to develop experimental models but at the in vitro and nvivo that can help screening and developing drugs for Loa loa. If we can have drugs that can kill Loa Loa alone, that already will be a great achievement. If we could have a good drug that could kill Loa Loa in a safe manner for the host (the human) and also kill onchocerciasis, that will be a tremendous achievement. Actually, we were handicapped, we don’t have a solution for Loa Loa as we stand today.
Q: This problem is very endemic in the Central Africa region. At the level of education especially within the universities, are there any incentives to get students more interested in research work for diseases that affect their environment? And is there available training to enable them conduct research that could possibly bring a much needed solution in the future?
Prof. Wanji: I think the teaching of parasitology (because all of this belongs to microbiology and parasitology), is difficult because most of our African students are likely to learn computer science, business administration and Economics.
We, at the University of Buea for the past five years in the Department of Microbiology and Parasitology have created postgraduate programmes that are specifically oriented to Neglected Tropical Diseases (NTDs). We have an MSc in Molecular Parasitology and Vector Biology, MSc in Microbiology, MSc in Epidemiology and Control of Infectious Diseases, a PhD in Cellular and Molecular Parasitology and a PhD in Microbiology. And if you look at our PhD and Master degree programmes, we have two arms: we have the arm of research and development which includes the MSc in Molecular Parasitology and vector biology, PhD in Cellular and Molecular Parasitology.
They give the basis for students to be involved in developing new tools for diagnosis of parasites, new tools for understanding the immune responses and developing vaccines, new tools for developing new drugs. The thing is that our students have to understand and be part of the momentum. But we also work with epidemiology and control orientation in the programme. We want them to be ready to uptake the product of the research to the end users because the epidemiology conceives control programmes, monitors and evaluates them. We want them to be able to say, this is what we have achieved, this is where we are having difficulties or encountering bottlenecks and we can do this to change.
We have conceived a programme to address the problem of NTDs and infectious diseases at large maintaining a parasitology focus.
Q: What legacy would you want to leave behind?
Prof. Wanji: Difficult question. Legacy is difficult because it is not easy to praise yourself. I would like to be known as somebody who conscious of the dimension and width of NTDs devoted part of his life to contribute, to understand and fight those tropical diseases; by teaching students about NTDs, creating and developing research capacity that has contributed to the training of those students; by participating in research work that has contributed to change people’s lives, contributing to fight in the field of those diseases and by anticipating what the future will be in my discipline; re-orienting the teaching programme at the university to get African students to be more proactive in the solution to those problems created by NTDs.
Thank you for those last words Prof. Wanji.