Microorganisms causing diseases that characteristically are waterborne prominently include protozoa and bacteria, many of which are intestinal parasites, or invade the tissues or circulatory system through walls of the digestive tract. Various other waterborne diseases are caused by viruses.
As the Moon revolves around Earth, both objects also progress in orbit around the Sun. After completing one revolution with respect to the stars, the Moon must continue a little farther along its orbit to catch up to the same position it started from relative to the Sun and Earth.
The moon goes around the earth. The earth (with the moon going around it) goes around the sun. In cosmological terms, the earth and moon are close neighbours, and that's easy to spot by the fact that there were some magnificent moon landings by Nasa astronauts in the late 1960s and early 1970s.