Level of Adherence and Associated Factors to Option B+ PMTCT among Pregnant and Lactating Mothers in Selected Government Health Facilities of South Wollo Zone, Amhara Region, North East Ethiopia, 2016 Delelegn Tsegaye 1 , Leul Deribe 2* , Shambel Wodajo 1 Author affiliations: 1 College of medicine and health sciences, Wollo University, Ethiopia 2 College of Health Science, Addis Ababa University, Ethiopia. * Corresponding author E-mail address: DT: delelegnt78@gmail.com LD : leul.deribe@gmail.com SW : Swedajo@gmail.com Short title: Adherence to Option B+ PMTCT among Pregnant and Lactating Mothers Funding Source: Addis Ababa University Financial Disclosure: None. Conflict of Interest: None to declare.