About the Authors

Matilda Ngarina

mmosi_2@yahoo.com

Affiliations Department of Obstetrics and Gynaecology, Muhimbili National Hospital, Dar es Salaam, Tanzania, Swedish Institute for Communicable Disease Control, Solna, Sweden and Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden

Edith A. M. Tarimo

Affiliation Department of Nursing Management, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania

Helga Naburi

Affiliations Department of Pediatrics, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania, Department of Public Health Sciences, Karolinska Institutet and Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden

Charles Kilewo

Affiliation Department of Obstetrics and Gynaecology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania

Mary Mwanyika-Sando

Affiliation Management and Development for Health, Dar es Salaam, Tanzania

Guerino Chalamilla

Affiliation Management and Development for Health, Dar es Salaam, Tanzania

Gunnel Biberfeld

Affiliation Swedish Institute for Communicable Disease Control, Solna, Sweden and Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden

Anna Mia Ekstrom

Affiliation Department of Public Health Sciences, Karolinska Institutet and Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MN ET HN CK GB AME. Performed the experiments: MN ET. Analyzed the data: MN. Contributed reagents/materials/analysis tools: MN ET GC MM GB AME. Wrote the paper: MN. Critical revision of the article: ET HN CK MMS GC GB AME.