Etodike, C. E. ., Ekeghalu, E. C. ., Ani, K. J. . and Mutambara, E. . (2021) “Covid-19 Fatality Rate in Third World Countries: A Review of Environmental Challenges and Impacts on Public Health and Human Security”, Journal of Intellectual Disability - Diagnosis and Treatment, 9(1), pp. 39–44. doi: 10.6000/2292-2598.2021.09.01.5.