About 80 people will attend the annual Otago International Health Research Network gathering, which is supported by the Otago Centre for International Health.
Attendance would be the highest in the centre's five and a-half-year history, up from about 70 last year, organisers said.
Prof Mulholland, an Australian who is professor of child health and vaccinology at the London School of Hygiene and Tropical Medicine, will speak about providing new vaccines for the developing world and who should be responsible.
Otago centre co-director Prof Philip Hill said Prof Mulholland had a background of ''amazing work on child vaccine evaluation and advocacy for the past 20 years''.
Prof Mulholland's talk will be given at the Otago Museum's Hutton Theatre at 4pm on November 7, the first day of the two-day conference. Dr Satupaitea Viali, a cardiologist based in Samoa, will give a public talk on rheumatic fever, rheumatic heart disease and research in Samoa at 12.30pm on November 8, also at the Hutton Theatre.
The health research network aims to foster collaborative links throughout the University of Otago over international health.
