sacred oil are kept locked up." Proper disposal In Catholicism, holy water, as well as water used during the washing of the priest's hands at Mass, is not allowed to be disposed of in regular plumbing. Roman Catholic churches will usually have a special basin (a ) that leads directly into the ground for the purpose of proper disposal. A hinged lid is kept over the holy water basin to distinguish it from a regular sink basin, which is often just beside it. Items that contained holy water are separated, drained of the holy water, and then washed in a regular manner in the adjacent sink. Hygiene Holy water fonts have been identified as a potential source of bacterial and viral infection. In the late-19th century, bacteriologists found staphylococci, streptococci, coli bacilli, Loeffler's bacillus, and other bacteria in samples of holy water taken from a church in Sassari, Italy. In a study performed in 1995, 13 samples were taken when a burn patient acquired a bacterial infection after exposure to holy water. The samples in that study were shown to have a "wide range of bacterial species", some of which could cause infection in humans. During the swine-flu epidemic of 2009, Bishop John Steinbock of Fresno, California, recommended that "holy water should not be in the fonts" for fear of spreading infections. Also in response to the swine flu, an automatic, motion-detecting holy-water dispenser was invented and installed in an Italian church in 2009. In 2020, because of the COVID-19 pandemic, Episcopal Conferences directed that holy water be removed from the fonts or stoups. Christian traditions Roman Catholics Sacramental and sanctification A blessing, as a prayer, is a sacramental. By blessing water, Catholic priests praise God and ask him for his grace. As a reminder of baptism, Catholic Christians dip their fingers in holy water and make the sign of the cross when entering a church. Fr. John F. Sullivan, writing in the early twentieth century, noted that, "Besides the pouring of baptismal water ... the sprinkling with holy water is a part of the ceremonies of Matrimony, of Extreme Unction and of the administration of the Holy Eucharist to the sick, and it is employed also in services for the dead." The Sunday liturgy may begin with the Rite of Blessing and Sprinkling Holy Water, in which holy water is sprinkled upon the congregation; this is called "aspersion" (from