Eligius F. Lyamuya1, Sabrina John Moyo 1*, Ewaldo V. Komba2 and Martin Haule1
1Department of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania.
2Department of Internal medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania.
