The plaque was funded by the local Redemptoris Missio Foundation for Humanitarian Assistance, which said Błeńska dedicated her life to "selfless work for Africa’s poorest inhabitants."
Her decades of service earned her the nickname "the Mother of Lepers."
Born in 1911, Błeńska graduated from a medical school in her hometown of Poznań at age 23 and later served in World War II as a member of Poland’s underground Home Army.
After the war, she emigrated to Britain and completed studies at the Institute of Tropical Medicine and Hygiene at the University of Liverpool.
In 1950, she travelled to Buluba, near Lake Victoria in Uganda, where she spent the next four decades to treating people with leprosy.
Under her guidance, a small facility run by Irish Franciscan nuns grew into a modern treatment centre with a hospital, housing for patients and a church. It is now known as the Wanda Błeńska Training Centre.
Błeńska worked in Uganda for 43 years before returning to Poland in 1993. She died in 2014 at the age of 103.
Interviewed on her 100th birthday, she said: "I am grateful to God that I could live in Uganda and help the local people. These were years of hard work, but happy years, during which I met with much warmth and gratitude."
Her distinctions included the Order of St. Sylvester, bestowed by Pope John Paul II, and the Order of Reborn Poland, one of the country's highest honours.
The Vatican's Congregation for the Causes of Saints opened her beatification process in 2020.
In the Catholic Church, beatification is one stage short of being recognised as a saint.
She is an honorary citizen of Uganda and of Poznań, which also named a roundabout after her.
(mk/gs)