Paul Wilson, Assistant Professor of Clinical Population and Family Health at the Columbia University Mailman School of Public Health, discussed “Donor assistance and middle-income countries: the case of immunization” on March 2 in the Seminar Room, Horchow Hall. The event was part of the lecture series, “Conversations on Global Health Policy,” co-sponsored by the Jackson Institute for Global Affairs and the Yale Global Health Leadership Institute. The lectures feature speakers working in the global health field, including leaders from government, donor agencies and NGOs.