Create the join, either automatically or manually. For details, see How to: Join Tables Automatically or How to: Join Tables Manually. Select the join line in the Diagram pane, and then from the Query Designer menu, choose, selecting the command that includes the table whose extra rows you want to include.
Onchocerciasis, also known as river blindness and Robles disease, is a disease caused by infection with the parasitic worm Onchocerca volvulus. Symptoms include severe itching, bumps under the skin, and blindness. It is the second most common cause of blindness due to infection, after trachoma. The parasite worm is spread by the bites of a black fly of the Simulium type.
Large numbers of microfilariae are present on the skin and often enter the eye. The patient initially complains of itching, but blindness occurs as a result of chorioretinitis and optic neuritis. The disease is treated successfully with ivermectin. Syn. onchocercosis; river blindness.