【Abstract】 Objective To study medical mollusc in Beijing region.  Methods All medical molluscan specimens were collated and analyzed, which were collected from Beijing and deposited in the Zoological Museum, Institute of Zoology, Chinese Academy of Sciences, based on field work, literature, museum records and expert assistant.  Results A total of 29 important species of molluscs related to 48 kinds of parasites in Beijing region had been identified, which belonged to 10 families, 2 Class.  Conclusion Molluscs played a key role in transmitting parasitic diseases as intermediate host. There were no reports on medical molluscan diversity, distribution and its parasites in Beijing region for more than thirty years. This study showed that so many medical mollusc could survive in Beijing region and it should be paid more attention for department of public health management.

【Abstract】 Animals are closely related to the occurrence of emerging infection diseases according to the epidemiological investigation of emerging infection diseases like SARS. Many factors lead to the prevalent of important zoonosis or emerging zoonosis emergence such as environment changes, human and animal demography, pathogen changes and changes in farming practice. Rodents are the reservoir of a variety of pathogens, and these pathogens will lead to the occurrence of all kinds of emerging infectious diseases. Emerging infectious diseases close to rodents are of the large variety, including plague, hemorrhagic fever with renal syndrome, leptospirosis, and lyme disease. The important methods controlling emerging infectious diseases are to strengthen domestic and international cooperation, establish animal disease surveillance network, change human behavior and preserve ecological balance.