In children below the age of five, whose immune systems are still developing, the infections can lead to malnourishment; they cause up to 42,000 deaths annually. Soon there may be a vaccine to protect against these infections. In the Lancet Infectious Diseases last month, scientists shared the results of the first study to evaluate the safety and efficacy of an ETEC-controlling vaccine in a large pediatric population in Gambia.
DNA variants near a gene called MSRB3 - which is important for hearing in humans - could determine whether a dog's ears are pendulous like a basset hound's or stubby like a rottweiler's. Researchers analysed the genomes of thousands of canines and found that small, single-letter changes to DNA in a region of the genome near MSRB3 could boost the gene's activity. The boost can increase the rate at which ear cells proliferate, resulting in longer ears.
E. coli - you don't want it. You really, really don't. Properly known as Escherichia coli, E. coli are bacteria found in the intestines of humans and animals. While many of them are harmless, some kinds can cause severe gastrointestinal illness, with the most dangerous pathogenic types - such as Shiga toxin-producing E. coli (STEC) - potentially leading to kidney failure and death, particularly among vulnerable groups such as children, the elderly, and those with compromised immune systems.
Being overweight doesn't just make people more susceptible to chronic illnesses such as heart disease and diabetesit might also increase their risk of severe influenza and other infections, a new study confirms. The study, published today in the Lancet, suggests that people with obesity may be more susceptible to death and hospitalization from a variety of infections caused by viruses, fungi, parasites and bacteria.