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."
Their study, "Inactivation of an Enveloped Surrogate Virus in Human Sewage," was published recently in Environmental Science & Technology Letters.
To reduce the risk of infection for sanitary workers, the World Health Organization recommends latrine waste contaminated with Ebola be held for a week or longer before any efforts are made to transport it.
Casanova and Weaver conducted experiments on sewage samples taken from an urban wastewater reclamation facility, spiking the samples with Φ6 as a stand-in for Ebola. Their analysis found that at 86 degrees Fahrenheit (equal to 30 degrees Celsius) the virus was essentially inactivated after threeto seven days. However, samples tested at 72.6 degrees Fahrenheit (or 22degrees C) took several days longer to decay.
The study suggests longer holding times may be needed where temperatures are lower. Longer holding times may also be advisable to eliminate "longer-surviving subpopulations of viruses."
To read the full paper, visit: http://pubs.acs.org/doi/abs/10.1021/acs.estlett.5b00029.
Source: Georgia State University
Product Locator: Spring and Early Mother's Day Gift Guide for Infection Prevention Personnel
March 27th 2024Whether it's a spring holiday, birthdays, or no reason at all, infection prevention personnel love to give and receive gifts that help at the end of a stressful day. Infection Control Today® offers some gift ideas for infection prevention personnel and their families.
Catching Up With Vangie Dennis, AORN 2022-2023 President at AORN 2024
March 26th 2024Infection Control Today (ICT) had the privilege of catching up with Vangie Dennis, MSN, RN, CNOR, CMLSO, at the Association of periOperative Registered Nurses' (AORN’s) International Surgical Conference & Expo 2024. As the former president of AORN and an esteemed figure in perioperative services, Vangie Dennis shared insights into her recent endeavors and the exciting new chapter she's embarked upon.
How To Optimize Your Time Management Strategies for the Busy Infection Preventionist
March 25th 2024Is your calendar resembling a chaotic masterpiece of overlapping tasks? Join the club of infection preventionists striving to balance responsibilities. Dive into proven strategies from a fellow infection preventionist to reclaim control of your time, streamline tasks, and boost productivity effectively. This is an IP Lifeline article.
CenTrak Unveils Revolutionary BLE Multi-Mode Platform for Health Care RTLS Solutions
March 22nd 2024CenTrak, the industry leader in real-time location technology, introduces the groundbreaking BLE Multi-Mode Platform, setting a new standard for Real-Time Location Systems (RTLS) in health care. Discover how this innovative solution enhances location data precision and streamlines operations for health care organizations.