Flock vaccination reduces risk of salmonella enteritidis infection

摘要

Salmonella enterica serovar enter-itidis (SE) emerged in the United States during the late 1980s and is considered as the main serotype associated with contamination of table eggs. The probability of egg-borne infection in humans can be prevented by effective implementation of a comprehensive Egg Quality Assurance Program (EQAP). Surveys conducted by the U.S. Department of Agriculture (USDA)-National Animal Health Monitoring System (NAHMS) have demonstrated the presence of SE in the environment of laying hens with a special concentration in high-rise units in multi-aged, in-line operations.