1. Mzuzu Urban Health Centre, Mzimba North District Health Office
2. Malawi Liverpool wellcome Research Programme
3. School of Economics and Management, Yangtze University, Jingzhou, Hubei, China.
4. Nalikule College of Education, Kanengo, Lilongwe, Malawi.
5. Directorate of Research, University of livingstonia, Mzuzu, Malawi
6. Clinical Services, Mzimba North District Health Office,Mzuzu Malawi
7. Department of Laboratory Services,Mzimba North District Health Office, Mzuzu, Malawi
8. Department of Clinical Services,Kamuzu Central Hospital, Lilongwe, Malawi
9. Department of Mathematics, University of Malawi, Zomba, Malawi