Since the 16th century up to the arrival of the Camillians in May 1986, the adobe stone church has been standing intact in Boso-boso despite earthquakes and the fire during World War II.  It was Fr. Ivo Anselmi, MI who ‘discovered’ the place while driving with some seminarians along the stretch of Marcos Highway.  He checked out the church and met the Little Sisters of Jesus who at that time had been residing nearby for 10 years.  The Little Sisters welcomed the Camillians warmly and invited them to celebrate the Eucharist in the Church every Sunday.  Since the Sisters were then planning to leave the place due to lack of vocations, they also asked the Camillians to take over the task of attending to the spiritual needs of the people.

In 1987, Fr. Raul Uson, accompanied by some scholastics, started celebrating masses in Boso-Boso and Kaysakat.  In the same year, a monthly medical mission was conducted with  Dr. Nelso Sucgang as volunteer. After two years, Fr. Rolly Fernandez, MI was invited to take over. Being the director of scholastics then, he paved the way for the scholastics to be exposed to the rural and community based health care program in Boso-boso. The community health care volunteers were formally organized in November 1992, after undergoing extensive training.

From that time on, the untiring Fr. Rolly and other Camillian priests and brothers became intensely engaged in the upliftment of the health and wellness of the people of Boso-Boso and the neighboring sitios. Rain or shine the Camillians journeyed through rivers and marshes to bring medicines and the “Word of God” to the people.  They implemented development projects one after the other like the monthly medical mission and the nutrition program in 1992, the restoration of the church with the assistance of Nuestra Señora dela Anunciata Foundation and the people of Boso-Boso in 1993, the building of the pre-school and the health care clinic for the training of volunteers, health programs, and availability of medical services.

Many years have passed and the Camillians are still reaching out to far and farther areas around Boso-Boso.  It was in May 2004 that this area was made into a parish with Nuestra Señora de la Anunciata as the patroness and Fr. Meng Barawid as the first parish priest.

At present the spirit of Camillus pervades the major endeavors in the parish – spiritual enrichment and growth, health care programs for the sick, and environmental protection.  Indeed, from the experience of a simple visit an authentic mission has evolved in which our Camillian scholastics are very much involved.