A New Superbug May Be Upon Us

A terrifying, yet not surprising article was published today in The Lancet Infectious Diseases about mcr-1. For those who aren’t familiar with it, mcr-1 is a gene associated with antibiotic resistance to colistin, a type of polymyxin antibiotic used to treat infections that are already resistant to several other types of antibiotics. News sources have …

New papers on microbiology of the built environment, November 15, 2015

Here are some new papers of interest. Separate treatment of hospital and urban wastewaters: A real scale comparison of effluents and their effect on microbial communities – Teofana Chonova, François Keck, Jérôme Labanowski, Bernard Montuelle, Frédéric Rimet, Agnès Bouchez – Science of the Total Environment (not OA) Hospital wastewaters (HWW) contain wider spectrum and higher quantity of pharmaceuticals …

Important paper: Intrinsic challenges in ancient microbiome reconstruction using 16S rRNA gene amplification

To date, characterization of ancient oral (dental calculus) and gut (coprolite) microbiota has been primarily accomplished through a metataxonomic approach involving targeted amplification of one or more variable regions in the 16S rRNA gene. For anyone interested in rRNA studies of microbial communities, ancient microbiomes, or analysis of samples with small amounts of DNA this …

Story behind the paper: Porphyrobacter mercurialis, a new species found by #citizenscience and then sent to the #iss

So our first attempt at entering the world of bacterial taxonomy and the description of a new species came out today with the thrilling title of “Porphyrobacter mercurialis sp. nov., isolated from a stadium seat and emended description of the genus Porphyrobacter“. The story leading to this paper took us into  a lot of new …

New papers on microbiology of the built environment, November 8, 2015

Here are the papers on the built environment microbiology that I found in the past weeks. For more microbiology papers, please check out my daily blog MicrobiomeDigest. Copper surfaces are associated with significantly lower concentrations of bacteria on selected surfaces within a pediatric intensive care unit – Michael G. Schmidt – American Journal of Infection …

Early exposure to animals reduces risk of developing childhood asthma

More good news for animal lovers! A recent study on the effects of exposure to dogs and farm animals on childhood asthma was just published in JAMA Pediatrics. The article is entitled Early Exposure to Dogs and Farm Animals and the Risk of Childhood Asthma by T. Fall, C. Lundholm, A.K. Örtqvist, K. Fall, F. Fang, Ã…. Hedhammar, O. Kämpe, E. Ingelsson, C. Almqvist.  Here is the …

New papers on microbiology of the built environment, October 30, 2015

The latest papers on microbiome of buildings and other objects used by humans. Today, we have microbiomes of water reservoirs and plumbing pipes, Brazilian money notes, an Italian cheese factory, and a brewery. For more microbiome papers from other sources (both human-associated or environmental), check out my daily blog MicrobiomeDigest.com. Impact of Water Chemistry, Pipe …

Like a cat on a hot tin roof: the microbiome of solar panels

When we think of the built environment, we usually only include the indoor surfaces and air. A new study (preprint) posted last week on BioRxiv went through the roof, and looked at the microbes living on solar panels. A highly diverse, desert-like microbial biocenosis on solar panels in a Mediterranean city – Pedro Dorado-Morales, Cristina Vilanova, Juli …

The Microbial Neighbors in Your Tap Water Episode 1: Say Hello to the Building Plumbing Microbiome

We expect people next door to be good citizens and would like to meet them before moving in.  When it comes to the neighbors living in our tap water, precaution is especially in order.  In the “Microbial Neighbors in your Tap Water” series, our PLoS ONE paper released today introduces these invisible neighbors- the building …