The bacterium B. cereus had so far been considered to be exclusively endospore-forming. In response to harsh conditions, the bacteria form protective endospores enabling them to remain dormant for extended periods. When conditions are more favorable, the endospores reactivate to become fully functioning bacteria.
Jesuit High School of New Orleans is the first and only prep school in the United States to deploy a high-tech Germ-Zapping Robot™ to wage environmental war by destroying bacteria and potentially deadly pathogens typically found lurking inside gymnasiums, athletic locker rooms, weight training areas, shower and bathroom facilities, and even personal sports equipment.
Researchers at the University of Georgia found that pathogens, like salmonella, can survive for at least six months in cookies and crackers. The recent study was prompted by an increased number of outbreaks of foodborne diseases linked to low-water-activity, or dry, foods.
Here's a review of ICT's top news, features and slide shows relating to environmental hygiene in 2015.
In 2015, the World Health Organization (WHO) led the health response to major outbreaks and emergencies from West Africa to Iraq. It provided new advice on a broad range of health issues, including dementia, food safety, HIV treatment, sugar consumption, antibiotic resistance and climate change. The organization also marked the end of the 15-year era of the Millennium Development Goals and saw the launch of the Sustainable Development Goals for the next 15 years.
Scientists have developed an easy-to-use computer program that can quickly analyze bacterial DNA from a patient's infection and predict which antibiotics will work, and which will fail due to drug resistance. The software is currently being trialed in three UK hospitals to see whether it could help speed up diagnosis of drug-resistant infections and enable doctors to better target the prescription of antibiotics.
Two types of bacteria found in the soil have enabled scientists at Texas A&M AgriLife Research to get the dirt on how resistance to antibiotics develops along with a separate survival strategy. The study, published in the journal PLOS Genetics this month, identifies an atypical antibiotic molecule and the way in which the resistance to that molecule arises, including the identity of the genes that are responsible, according to Dr. Paul Straight, AgriLife Research biochemist.
Some skin wounds, such as diabetic ulcers, are chronic and may never heal; others, such as burn wounds, are often large and difficult to treat, resulting in pain, infection and scarring. Researchers at the University of California, Los Angeles (UCLA), funded by the National Institutes of Health (NIH), have developed a synthetic biomaterial that fills wounds and aids in regeneration of skin cells, which ultimately improves wound healing.