Safe Food and Public Health - Rodents Pests and Their Control Rodents Pests and Their Control Rodents Rat and mouse are rodents. Special Features about Rodent social animal nocturnal good climber, especially for Rattus rattus .
Rodents are carriers of viral, rickettsial and bacterial diseases.
Rodents provided the essential link in the spread of rodent-borne diseases which are of public health importance. Our Department has carried out study on rat flea and rodent infestation survey to monitor the situation of flea and rodent infestation in 18 districts. Although Hong Kong does not have human plague transmission since the mid of 1920s, our Department would carry out flea and rodent infestation operation in places with Rat-flea Index greater than 1. In order to understand the situation of rodent infestation and to obtain a more comprehensive picture on rodent problem, rodent infestation survey can be conducted. The rodent infestation rate study should adopt scientific and objective method in determining the degree of rodent infestation in areas of interest.