Dr. Callixte Yadufashije

Senior Lecturer

Dr. Callixte Yadufashije is Rwandan scientist, researcher and academician. he is interested in physical world ontology. he did his research degree in medical microbiology and public health, and also did his masters and postgraduate diploma in clinical epidemiology and public health respectively. he supervised more than 80 researches for both undergraduate and postgraduate students. he published more than 25 articles in areas of health sciences, philosophy and political sciences. His postdoctoral research is in public health areas specifically in maternal and child health. He taught in various university in Africa like Hope Africa University in the school of medicine in Burundi, Assisted distance learning graduate student of Kampala university and Burkinafaso institute of technology. he has been Deputy vice chancellor for academic affairs at Rusizi international University and taught environmental health courses in Muhabura Integrated polytechnic college in Rwanda.Currently,he is assistant director of doctoral school in distant production house university in partnership with Cameroonian universities and also teach public health courses in Jomo kenyatta university of agriculture and technology, Kigali Campus.

Rwanda

Member of: JOMO KENYATTA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, KIGALI CAMPUS

Public Documents 1

Post Nyiragongo Volcano eruption and the rise of covid-19 in Rwanda: A Mathematical M...

Callixte Yadufashije

and 5 more

October 25, 2021

Background: Nyiragongo Volcano erupted, and disturbed preventive measures taken by Rwanda to curb the pressure of COVID-19 pandemic transmission. About 232,433 Congolese left their home, and of them, more than 8000 people crossed the border to Rwanda, which disturbed COVID-19 pandemic preventive measures. Objective: This study sought to find out whether the rise in Covid-19 in Rwanda was caused by volcanic eruption in either the exposed area of Rubavu district due to suddenly unpredicted eruption or spread throughout some neighboring areas via Kigali due to the earthquakes. Both Mathematical model and a sequential mathematical preliminary were used. Methods: A sequential mathematical preliminary of Covid-19 was considered to check how it spreads within a large number of population. The model diagram was proposed with four compartmental model. The nonlinear dynamical system was derived from the model. The model was checked for positivity and boundedness in a system. The basic reproduction number was computed using the next generation Matrix. Results: We found that COVID-19 pandemic was positively invariant in a system. The transmission rate was observed with 〖(R〗_0= 25.51). The transmission rate was great than what was determined before the eruption of Nyiragongo Volcano (Ro=3). Since R_0= 25.51 the disease is high in the system. As of the study based, the results finally showed that the rise in Covid-19 in Rwanda was caused by volcanic eruption. Preventive measures should be reinforced by providing a place where people should be kept in case of natural disasters and wars in neighboring countries.