About the Authors

Sadia Shakoor

Affiliations Department of Pediatrics and Child Health, the Aga Khan University Hospital, Karachi, Pakistan, Department of Pathology and Microbiology, the Aga Khan University Hospital, Karachi, Pakistan

Furqan Kabir

Affiliation Department of Pediatrics and Child Health, the Aga Khan University Hospital, Karachi, Pakistan

Asif R. Khowaja

Affiliation Department of Pediatrics and Child Health, the Aga Khan University Hospital, Karachi, Pakistan

Shahida M. Qureshi

Affiliation Department of Pediatrics and Child Health, the Aga Khan University Hospital, Karachi, Pakistan

Fyezah Jehan

Affiliation Department of Pediatrics and Child Health, the Aga Khan University Hospital, Karachi, Pakistan

Farah Qamar

Affiliation Department of Pediatrics and Child Health, the Aga Khan University Hospital, Karachi, Pakistan

Cynthia G. Whitney

Affiliation National Center for Immunization and Respiratory Diseases, CDC, Atlanta, Georgia, United States of America

Anita K. M. Zaidi

anita.zaidi@aku.edu

Affiliation Department of Pediatrics and Child Health, the Aga Khan University Hospital, Karachi, Pakistan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AKMZ ARK SS. Performed the experiments: FK. Analyzed the data: SS CGW AKMZ. Contributed reagents/materials/analysis tools: SMQ. Wrote the paper: SS CGW AKMZ. Assisted with manuscript write up and editing: FJ FQ.