• Require X (hemin) and/or V (nicotinamide adenine dinucleotide) factors for growth • Responsible for 0.5–1% of all cases of IE • Haemophilus aphrophilus is the most common species responsible for IE ...

Nine species (240 strains) of gram-negative bacilli were studied; 221 were freshly isolated from the urinary and intestinal tracts, wounds and abscesses. Thirteen strains of salmonella and 6 of ...

Researchers have developed a new antibiotic that reduced or eliminated drug-resistant bacterial infections in mouse models of acute pneumonia and sepsis, while sparing healthy microbes in the mouse ...

Please provide your email address to receive an email when new articles are posted on . The IDSA updated its treatment guidance on the most common antimicrobial-resistant gram-negative infections. The ...

Scientists report that they now know how to build a molecular Trojan horse that can penetrate gram-negative bacteria, solving a problem that for decades has stalled the development of effective new ...

Gram staining remains one of microbiology’s most essential techniques, offering rapid differentiation between Gram-positive and Gram-negative bacteria. By exploiting differences in cell wall structure ...

Gram staining, first developed in 1884 by Hans Christian Gram, remains a foundation of microbiology for separating bacteria into Gram-positive and Gram-negative groups. This simple yet powerful test ...

With delicate hues of purple and pink, a lab technique called gram staining has reliably characterized bacteria for more than a century. Yet many scientists are mistaken about why the vivid method ...