Agogo Malaria Research Centre, PATH, Kwame Nkrumah University of Science and Technology, Ghana, PATH, PATH, Kwame Nkrumah University of Science and Technology, Ghana, International Vaccine Institute, International Centre for Diarrheal Disease Research (icddr,b), Government of the United States of America - HPV Serology Laboratory, PATH, Government of the United States of America - HPV Serology Laboratory, - Infectious Disease Division, PATH, PATH and - Infectious Diseases Division