Helicobacter pylori’s own heartburn remedy may be a good means for preventing the damage the stomach-ulcer pathogen causes. H. pylori lives happily in the stomachs of about half of the world’s population, where it relies heavily on the enzyme urease to break down urea in stomach acid into carbon... Read More
This scanning electron micrograph revealed the presence of the human immunodeficiency virus (HIV-1), (spherical in appearance), which had been co-cultivated with human lymphocytes. Note the lymphocyte in the lower left, and some of its extended pseudopodia. HIV-1 virions can be seen on the surfa... Read More
In the past 12 years, four large-scale efficacy trials of HIV vaccines have been conducted in various populations. Results from the most recent trial—the RV144 trial in Thailand, which found a 31 percent reduction in the rate of HIV acquisition among vaccinated heterosexual men and women—have ... Read More
Almost 3.3 billion people, half of the world's population, risk being infected with malaria. Despite having effective means against malaria, the WHO reports 250 million cases of malaria each year and more than 700,000 related deaths. Researchers at the University of Copenhagen have now discovere... Read More
Algae can seem quite stubborn and hardy when trying to rid them from your pool, but when it comes to mass producing algal feedstock to be used in the conversion to biofuel, more things can happen to destroy this type of crop than most realize.
Of many culprit organisms that may result in the... Read More
Asymptomatic colonization by Clostridium difficile, absent the use of antibiotics, is common in infants and when it happens changes occur in the composition of the gut microbiota according to research published in the March 2011 issue of the Journal of Clinical Microbiology.
The adult human ... Read More
Vincent, TWIV, TWIP amd TWIM are wonderful for a retired person like myself. I worked in IT, but started out with a biology undergrad that instilled my interest in biology many years ago. I always look forward to the next podcast. I have discov... Read More
"In 2000, Roy Cullimore, a microbial ecologist and Charles Pellegrino, scientist and author of Ghosts of the Titanic discovered that the Titanic --which sank in the Atlantic Ocean 97 years ago -- was being devoured by a monster microbial industrial complex of extremophiles as alien we might expe... Read More
In the early 1900s, scientists discovered that each person belonged to one of four blood types. Now they have discovered a new way to classify humanity: by bacteria. Each human being is host to thousands of different species of microbes. Yet a group of scientists now report just three distinct e... Read More
Photosynthetic microbial mats forming large conical structures up to half a meter tall have been discovered by astrobiologists in Lake Untersee, Antarctica. This research is described in an article in the May 2011 issue of the journal Geobiology.
Lake Untersee is located at 71°20'S, 13°45'E i... Read More
Cultures of a destructive mold called Phomopsis strains that infect both crop and noncrop plants. One of the species of this genus, Phomopsis viticola, cause a plant disease called phomopsis or dead-arm. Usually, infections begin during early growth stages in spring. This affects leaves, fruit, ... Read More
Primary care physicians report that the time it takes to allay parental fears about childhood vaccines makes it difficult to accommodate these conversations in a typical office visit.
A new study published online April 15 in the American Journal of Preventive Medicine shows that 53% of family... Read More
Under a low magnification of 23X, this scanning electron micrograph (SEM) depicted a dorsal view of an unidentified male Dermacentor sp. tick found upon a cat in the suburbs of Decatur, Georgia, which measured approximately 3.5mm from its gnathosoma (i.e., capitulum), which is where its mouthpa... Read More
In the absence of early antibiotic treatment, respiratory anthrax is fatal. The 2001 bioterrorism attacks in the US killed four people, out of 22 infected (10 of them with respiratory anthrax), despite massive antibiotic administration, probably because therapy did not begin until the disease ha... Read More
Stephan Harbarth from the University of Geneva, Switzerland and colleagues argue that the International Health Regulations (IHR) should be applied to the global health threat of antimicrobial resistance. They say that certain events marking the emergence and spread of antimicrobial-resistant bac... Read More
Patients admitted to hospital with inflammatory bowel disease (IBD) face a sixfold greater risk of death if they become infected with Clostridium difficile, a new study has found. The researchers say IBD patients should be screened on admission to protect them from serious illness.
IBD, cons... Read More
Acute respiratory infection (ARI) is a leading cause of morbidity and mortality in children worldwide. This study aimed to determine the viral and atypical bacterial causes of different severities and clinical manifestations of ARI in preschool children from low-income families in North-East Bra... Read More
Rotavirus vaccination in all areas of Brazil is associated with reduced diarrhea-related deaths and hospital admissions in children aged under five years, reports a study in this week's PLoS Medicine.
Manish Patel from the Centers for Disease Control and Prevention in Atlanta, Georgia, USA, ... Read More
After the revision of World Health Organization (WHO) guidelines yesterday, international medical humanitarian organization Doctors Without Borders/Médecins Sans Frontières (MSF) calls for a drug proven to reduce deaths in children suffering from severe malaria to be immediately rolled out in Af... Read More