Introduction Pathogens are organisms that cause disease. There are three types of organisms responsible for most waterborne diseases which include viruses, bacteria and protozoa. Fecal matter from humans and other animals is the source of water contamination. The intestinal tract is affected by Rotavirus and symptoms include diarrhea, vomiting, headache, fever and chills. Some waterborne diseases can cause death. Along with these pathogens also come parasites. The two types of intestinal parasites are helminths and protozoans. Helminths are worms with multiple cells. The most common helminths are tapeworms, pinworms and ringworm. These intestinal parasites can also be transmitted through sexual intercourse and other forms of sexual play. In the adult form, helminths cannot multiply in the human body. Protozoa have a single cell that multiplies inside the human body causing serious infections. Intestinal parasites are usually transmitted when someone comes into contact with infected feces in contaminated soil, food or water due to poor hygiene. This report focuses on a particular pathogen or infectious agent that causes illness or disease in its host. Investigating the impact rotavirus has on the human body from the cellular level to bodily systems and discussing how it has and will impact society. This investigation will be carried out by collecting, organizing and analyzing relevant past and present scientific data which will then be compiled and presented as an analytical report with research findings and knowledge relating to parasites and pathogens. Background Rotavirus is a member of the Reoviridae family that contains double -RNA enclosed in... middle of paper... In Australia, from 1 July 2005 to 30 June 2006, national rotavirus serotype surveillance data have indicated that serotype G1 was the dominant serotype and represented 40% of all strains. Serotype G1 continues to be the most frequently reported serotype worldwide and has been the most common Australian serotype for all but two years since 1999. Conclusion Rotavirus is a common cause of viral gastroenteritis in infants and children Australian preschoolers. The infection is caused by person-to-person contact, such as contact with contaminated hands or feces (poop). It is possible to contract rotavirus multiple times. Rotavirus affects human systems in many different ways. It also has biological impacts on society through past, present and future predictions. In conclusion, rotavirus affects most of the world and has a great effect on young children.