DONEGAL native William Campbell will receive the Nobel Prize in Medicine at a ceremony in Stockholm tonight.

Professor Campbell, a graduate of Trinity College, will receive the Nobel Medal from King Carl XVI Gustaf of Sweden.

Professor Campbell and Professor Satoshi Omura were jointly awarded the prize for their discoveries concerning a drug against infections caused by roundworm parasites.

The drug, Avermectin, the derivatives of which, have radically lowered the incidence of river blindness and lymphatic filariasis. The drug has also shown efficacy against a growing range of other parasitic diseases.

Professor William Campbell, originally from Ramelton in Donegal,  graduated with first class honours in zoology from  Trinity College Dublin in 1952.