For today’s post, we are once again going to take a bit of a step back from the news and examine some of the fundamentals of Legionella bacteria and Legionnaires’ disease. With that in mind, today’s post will be doing a review of the basics regarding how testing for Legionella is done. Traditionally, Legionella is found by a culture on a buffered charcoal yeast extract agar. One very common procedure for detecting Legionella in water is to concentrate the bacteria before inoculating it onto a charcoal yeast extract agar along with some agents like polymixin, GVPC, vancomycin, glycine, and cyclohexamide in order to suppress any…
We recently wrote about the progress of a bill in the Illinois legislature which would promote the prompt notification in the case of an outbreak of an infectious disease like Legionnaires’ disease. There is, however, another push within these legislative efforts to also promote more rigorous Legionella monitoring. In order to keep Legionnaire’s bacteria from spreading, lawmakers are proposing, in addition to the notification requirements we discussed previously, a new water management plan which would require state operated residence facilities to monitor their potable water systems for Legionella. According to Senator Mike Hastings, “(V)eterans at these homes deserve homes that…
At the Baumholder Army Base in Germany, approximately 20 buildings were decontaminated after finding high levels Legionella bacteria. According to the base doctors, no one staying at the base tested positive for Legionnaires’ disease. Army officials explained their attempts to decontaminate the buildings last Wednesday and according to the commander of U.S. Army Garrison Rheinland-Pfalz Col. Keith Igyarto, workers are doing everything necessary to protect the health of everyone living in the base. The discovery of these buildings came about when the Army tested 124 buildings within the military base and community for Legionella bacteria this past February in order…
In today’s post, we will be taking a step back once again to review some basics surrounding Legionnaires’ disease. As such, a fundamental bit of information which may prove useful for future conversations is simply what the treatment for Legionnaires’ disease looks like in a broad way. The answer, in short, is antibiotics since in one way, a big part of treating Legionnaires’ disease is, put simply, treating a bacterial infection. A more specific answer, however, would include us listing some of the more effective antibiotics. As such, some examples include tetracyclines, quinolones, most macrolides, and ketolides. The reason these particular antibiotics are effective…
The subject of using big data to try and model for future outcomes has been a popular one in relations to numerous types of fields. Yet in regards to this post, one application for modeling which seems particularly interesting is in regards to epidemiology and specifically Legionnaires’ disease. Now the primary paper I could find dates back to March of 2011 however it does draw some interesting conclusions. Essentially they attempt to model a Legionnaires’ disease outbreak using symptom-onset data from several specific outbreaks in order to estimate the beginning and end of the release of Legionella. The researchers are…
Over the past few weeks, we have included several articles regarding the Quincy, Illinois Veteran’s Home Legionnaire’s disease outbreak and the state’s attempts to not only find out exactly what happened, but to also take steps to try and ensure this kind of severe outbreak can never happen again. As of yesterday, this process of figuring out next steps took a new decisive turn by having Gov. Bruce Rauner’s administration announce its plans to replace the residence halls at Quincy, Illinois veterans’ facility. The plan, which was revealed by the Illinois Department of Veterans’ Affairs Director Erica Jeffries, was initially…
Back in February, it was reported by KFOR that around six employees who worked inside the Robinson Renaissance Building had tested positive for Legionella bacteria. In addition, it was also revealed through lab results that the Legionella bacteria was located within one of the building’s cooling systems. Now new testing has been conducted on the downtown Oklahoma City building, testing which shows the building has been cleared of Legionella bacteria. This was revealed when KFOR was given additional information about the extensive testing which had taken place at the building since back in February when KFOR first received the information.…
Due to a Legionnaires’ disease outbreak at the Island Walk gated community at the West Villages development in North Port last Friday, the Sarasota County Health Department will be testing the pool as well as the spa area of the facilities. The environmental health director for the Sarasota County Health Department Tom Higginbotham said the test kits had arrived on Tuesday and that the water from the hot tub along with both pools would be tested. Mr. Higginbotham also mentioned that the health department’s investigation should take around two days and that while the spa and two pools are the focus of the investigation,…
Numerous topics surrounding Legionella bacteria and Legionnaires’ disease have come up on this site. As an effort to take a step back and examine some of the basics, this post seeks to examine various forms of control and prevention for Legionella bacteria. One effective chemical treatment is chlorine. This is particularly effective for systems with basic marginal issues however for systems with more significant problems, a ‘shock’ chlorination, i.e. when chlorine levels are raised to more than 2 ppm over 24 hours and then brought back down to 0.5 ppm can sometimes prove effective. Hyperchlorination is a somewhat similar process however it…
Last week, CBS Chicago reported that Legionella bacteria had been found at the Comptroller’s Springfield office. The results were confirmed last Tuesday by officials from Comptroller Susana Mendoza’s office and also noted that the contaminated water was not in locations of the office which were accessible to employees. This revelations comes to light at a clearly rough time for many of Illinois’ state facilities, which most recently included the news that health officials had confirmed a fourth case of Legionnaires’ disease at the Quincy, Illinois Veterans Home. It is important to keep this story in perspective. After all, Legionella bacteria was found however…