1. Department of Medical Laboratory Science, Faculty of Allied Medical Sciences, University of Calabar, Calabar, Nigeria.
2. Department of Medical Laboratory Science, Faculty of Allied Health Sciences, Ahmadu Bello University, Zaria, Nigeria.
3. Department of Medical Laboratory Science, Ebonyi State University, Abakaliki, Nigeria.
4. Antiretroviral Therapy Laboratory, Ahmadu Bello University Teaching hospital, Zaria, Nigeria.
5. Department of Medical Microbiology and Parasitology, Federal University, Dutse, Nigeria.
6. Institute of Veterinary Sciences, University of Saad Dahlab Blida1, Blida, Algeria.
7. Laboratory of Biotechnology Related to Animals Reproduction, Blida, Algeria.
8. Nigeria Field Epidemiology and Laboratory Training Programme, African Field Epidemiology Network, Abuja, Nigeria.
9. Department of Medical Laboratory Services, University of Abuja Teaching hospital, Gwagwalada, Abuja, Nigeria.
10. Department of Community Medicine, University of Abuja, Gwagalada, Abuja, Nigeria.
11. Department of Nursing Science, Maryam Abacha American university of Niger, Maradi, Niger Republic.