Pollution

Image: The foam rises so high that it flows into the neighbourhoods around the lake. Photo: Debasish Ghosh

bbc.co.uk - September 28th, 2015

Is it snowing in India's tropical southern city of Bangalore?

The picture above would certainly make you think so.

Unfortunately, the reality is quite different: what looks like snow is actually harmful snow-white froth that floats up from the city's largest lake and spills over into neighbouring areas.

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INFECTION CONTROL TODAY                                          March 11, 2015
Storing Ebola-infected sewage for a week at 86 degrees Fahrenheit or higher should allow enough time for more than 99.99 percent of the virus to die, though lower ambient temperatures may require a longer holding period, according to a new study by researchers at Georgia State University's School of Public Health.

The study co-authored by Lisa M. Casanova, assistant professor of environmental health, and Scott R. Weaver, research assistant professor in Epidemiology and Biostatistics, used bacteriophage Φ6, a type of virus, as a stand-in to study how long Ebola and similar viruses can survive in latrines and other systems for collecting and disposing of sewage. Bacteriophage Φ6 has a lipid envelope, meaning it has structural similarities to Ebola and several other types of virus, allowing for a safe study that did not require use of Ebola itself.

"The places hardest hit by Ebola are the places that often have the least infrastructure for safely disposing of sewage and are using things like pit latrines," says Casanova. "They need the answers to questions like this."

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