P.O. Box 9919, Nairobi - 00100,

KENYA. Tele: +254 722 424 174 or +242 20 232 3420 Tele/Fax: +254 20 271 6177 E-mail: mmachoki@uonbi.ac.ke

Address: Department of Medical Microbiology, University of Nairobi P.O. Box 19676 Kenyatta National Hospital, Nairobi-00202, KENYA

Telephone: +254 (20) 2717694

Cellular phone: +254 727 555254

Fax: +254 20 2714613