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http://www.cdc.gov/

CDC laboratories routinely work with some of the most deadly germs in the world – identifying health threats and conducting vital public health research. CDC constantly develops and reviews extensive laboratory guidelines and procedures to protect both the public and laboratory workers. However, after a series of laboratory incidents, which posed no public risk, CDC investigated its laboratory practices and found areas for improvement. Although significant progress has been made since, CDC will continue to assess and improve its practices to protect the safety of CDC staff and the broader community.