COVID-19 is a world pandemic that has affected and continues to affect human lives, socially and economically. Worldwide governments enforced preventive measures aimed at reducing the disease transmission due to its ...

Tanzania has been affected with a potential emerging and re-emerging of infectious diseases such as diarrhea, acute respiratory infections, pneumonia, hepatitis, and measles. There is an increasing trend for the ...

Drug abuse remains to be the global burden causing a large number of death and disability, it is now termed as a significant threat to public health for both developed and developing coun tries. This work presents a ...