Encountered a Positive Case of Legionnaires' Disease An initial round of sampling at the nursing home had 58% of samples come back positive for Legionella bacteria. Multiple overnight halogenations were attempted but biofilm was never eradicated and bacteria levels rose after initial decrease in positivity. The age of the building and severely compromised piping did not allow for chlorine to be a long term option. Local DOH and DEP mandated bi-weekly testing ( at $10,000 per round) and point of use filters to be installed ( at over $6,000/month) until positivity was at zero.

Join for free to read