1. Department of Virology and Centre Pasteur of Cameroon, Member of the International Network of Pasteur Institutes, Yaounde, Cameroon.
2. Department of Bacteriology and Mycology, Centre Pasteur of Cameroon, Member of the International Network of Pasteur Institutes, Yaounde, Cameroon.
3. Department of Biochemistry, Faculty of Science, University of Yaounde 1, Yaounde, Cameroon.
4. Department of Mycobacteriology, Centre Pasteur of Cameroon, Member of the International Network of Pasteur Institutes, Yaounde, Cameroon.
5. Department of Pneumology, Jamot Hospital, Yaounde, Cameroon.