Sometimes efforts to be environmentally friendly can give rise to microbial challenges. This was nicely described by Katie Dahlhausen in her recent post about water quality about green buildings. Other examples include observations that Legionella pneumophila can be contracted from shower heads and the use of low flow shower heads and lower water temperatures may increase its transmission. Likewise, wastewater (e.g., Environmental and …
A number of cooling towers around the Bronx have been found to be the source of a Legionella outbreak. A number of buildings in the area tested positive for contamination, including a drug manufacturer (thankfully the medicine was not contaminated, at least according to the company representatives). Legionella is a waterborne pathogen that can grow in …
Personally, I find this article pretty disturbing: Iowa City VA patients not told about bacteria problem. Basically, the story is, that the bacterium that causes Legionnaires disease (Legionella pneumophila) has been found in the water system at a VA hospital in Iowa. And the managers of the hospital say “But they said they’ve been able to control the …
Quick post here on a hospital water sampling study in Italy that found much higher levels of potentially pathogenic bacteria (e.g. Legionella) in aerators than in the rest of the plumbing system. Reading this gives a really good sense of how complicated it is to maintain a sufficiently sterile water distribution system for immunocompromised patients …
A group of us from Jonathan Eisen’s lab attended the General Meeting for the American Society for Microbiology (ASM) last month in Boston. A major highlight of the conference was “We Are Not Alone: Microbial Revelations of the Built Environment,” a symposium that was organized by the Junior Advisory Group that is made up of postdocs and …
Just came across this article entitled “Rainwater harvesting tanks enable spread of dangerous pathogens, study shows”. The article describes a fairly straightforward set of findings from rainwater storage tanks in South Africa. Researchers found Legionella, Klebsiella, Giardia, Salmonella, and Yersinia. Not a friendly-sounding list of bugs. However, I have the usual set of issues with …
You can download the database of over 360 publications that report characteristics of the indoor environment along with the microbes found in the studies. Each publication is entered as a record and includes citation, abstract, keywords, organisms, substrates, and environmental conditions as reported by the authors. The database in MS Access format is searchable for …
Researchers in Italy have found abnormally high levels of infectious microbes in the water from faucets at two hospitals compared to water coming in from the deeper areas of the pipes. One of the reasons is that the water is not meeting the chlorine or temperature requirement needed to eliminate harmful pathogens, such as Acinetobacter …
In the last 24 hours I saw articles with the following three headlines: My dishwasher is trying to kill me: Extreme conditions suit pathogenic fungus. Compost Harbors Legionnaire’s Disease Bacteria Bacteria, Mold Found In Vacuum Dust You’re not safe anywhere! And people wonder why microbes get such a bad rap. Yes, of course some microbes …
Yet another Legionella outbreak, this time in a retirement home in Ohio that has killed 6 people and sickened a couple dozen others. I feel like the rate of new stories about Legionella outbreaks (at least in the US) has been rising a lot the last couple of years. I found some data from the …