Infectious Disease Frontier

A phase 1b clinical trial by a valuable team of researchers explores the safety, immunogenicity, and optimal dosing of MVA-MERS-S, a modified vaccinia Ankara-based candidate vaccine for MERS-CoV.

Adherence to HIV pre-exposure prophylaxis (PrEP) remains a challenge among young women in sub-Saharan Africa, despite its proven effectiveness in preventing HIV. A landmark study led by Dr. Jennifer Velloza (University of California, San Francisco) evaluates innovative interventions to improve PrEP adherence in Johannesburg, South Africa.

A study in The Lancet Infectious Diseases by Stijn Raven, PhD, Marloes Heijne, PhD, Jeroen Koomen, PhD, and colleagues reports an outbreak of avian Chlamydia abortus causing severe respiratory illness. Three family members were hospitalized with pneumonia, one requiring intensive care. Wild bird exposure was identified as a probable source, with human-to-human transmission also considered. Retrospective analysis found ten similar historical cases, including one fatality. Findings highlight the need for surveillance of this emerging zoonotic threat.

A recent study published in Gut offers groundbreaking insights into colorectal cancer (CRC), revealing that the disease may persist in a state of chronic, unresolved inflammation, akin to a poorly healing wound. Researchers utilized advanced techniques, including lipidomics, single-cell, and spatial transcriptomics, to identify a critical imbalance within the tumor microenvironment.

A recent study published in BMJ Thorax highlights significant changes in the landscape of pneumococcal pneumonia among adults hospitalized with community-acquired pneumonia (CAP) over the past decade. The data, drawn from a prospective cohort of over 5,000 patients, reveals that the proportion of CAP cases caused by pneumococcus has nearly doubled, rising from 36.4% in 2013 to 66.9% in 2023. Notably, serotype 3 has become the dominant strain, increasing from 13.4% to 48.8% during the same period.

Antimicrobial resistance remains one of the biggest threats to global health. A recent study published in Clinical Microbiology and Infection evaluates the in vitro activity of cefepime-enmetazobactam, a novel β-lactam/β-lactamase inhibitor combination, against carbapenem-resistant Gram-negative pathogens.

In the world of inpatient infectious disease (ID) consults, a recurring challenge surfaces: the hesitation to shift from IV to oral antibiotics, even when clinical evidence supports it. This dialogue between an ID consultant and a surgeon, as shared by Dr. Paul Sax in NEJM Journal Watch, perfectly illustrates the tension.

Valuable researchers have conducted a groundbreaking three-arm, open-label, cluster-randomised trial in Niger to evaluate the effectiveness of mass campaigns using full and fractional doses of the pneumococcal conjugate vaccine (Pneumosil, PCV10) in reducing nasopharyngeal pneumococcal carriage among children aged 1–9 years.

Valuable researchers have uncovered promising insights into combating Clostridioides difficile infection (CDI), a leading cause of healthcare-associated infections. The study reveals that a naturally avirulent C. difficile strain, ST1-75, can protect against CDI by outcompeting virulent strains such as R20291.

A recent analysis sheds light on the clinical and mycological outcomes of treating candidaemia and invasive candidiasis with rezafungin compared to caspofungin. This study, pooling data from the STRIVE and ReSTORE trials, evaluated the efficacy of once-weekly rezafungin versus daily caspofungin across various Candida species. The findings suggest that rezafungin offers comparable, and in some cases superior, efficacy, particularly against Candida glabrata and Candida parapsilosis. Moreover, rezafungin demonstrated strong mycological eradication rates and lower all-cause mortality rates in specific Candida infections, positioning it as a promising treatment option.