1 | Abia State University, College of Medicine and Health Sciences, Abia State University Teaching Hospital, Department of Primary Health Care, Aba, Nigeria |
2 | Abia State University, College of Medicine and Health Sciences, Abia State University Teaching Hospital, Department of Microbiology and Immuniology, Aba, Nigeria |
3 | Abia State University, College of Medicine and Health Sciences, Abia State University Teaching Hospital, Department of Community Medicine, Aba, Nigeria |