Located in a church attic, The Old Operating Theatre is the one of the oldest in Europe.
Visitors can watch demonstrations of surgical techniques from the past and explore the herb garret, where herbs were dried and stored for the hospital’s apothecary. It also has an incredible – and sometimes gory! – collection of surgical apparatus and pathological specimens.
It is a thread-like worm that lives under the skin in the subcutaneous fat causing loiasis. Because it is often spotted migrating in the eye, it is known as the eye worm. The disease is also known as subcutaneous filariasis, Calabar swellings, African eye worm infection, Loa loa filariasis, and fugitive swelling.
This is where it gets interesting! The life cycle of Loa loa starts, when a Loa loa female gives birth to living microfilariae (prelarval eggs) inside the skin of an infected human. The microfilariae travel in peripheral blood during daytime, but during the night (noncirculation phase) they reside in the lungs. When a noninfected deer fly takes a blood meal from an infected human, it ingests microfilariae. The microfilariae lose their sheaths, migrate from the fly’s midgut to the hemocoel and eventually to the thoracic muscles. There they develop into first stage and eventually into third stage (infective) filarial larvae. The development inside the fly takes up to two weeks. They migrate to the fly’s proboscis (the snout) and invade another human during the next blood meal. The third stage larvae are transferred from the deer fly’s mouth parts to the skin. They burrow into the bite wound and enter the subcutaneous layer where they mature into adults in one year. The cycle is completed, when male and female mate and release microfilariae into the bloodstream. Loa loa adults live up to 17 years.