Biotechnological Interventions for the Production of Subunit Vaccines Against Group A Rotavirus.

Group A rotavirus (RVA) is a major cause of severe gastroenteritis in infants and young children globally, despite the availability of live-attenuated vaccines. Challenges such as limited efficacy in low-income regions, safety concerns for immunocompromised individuals, and cold-chain dependency necessitate alternative vaccine strategies. Subunit vaccines, which use specific viral proteins to elicit immunity, provide a safer and more adaptable approach.

RNA-dependent RNA polymerase of predominant human norovirus forms liquid-liquid phase condensates as viral replication factories.

Many viral proteins form biomolecular condensates via liquid-liquid phase separation (LLPS) to support viral replication and evade host antiviral responses, and thus, they are potential targets for designing antivirals. In the case of nonenveloped positive-sense RNA viruses, forming such condensates for viral replication is unclear and less understood. Human noroviruses (HuNoVs) are positive-sense RNA viruses that cause epidemic and sporadic gastroenteritis worldwide.

Development and application of a quadruple RT-qPCR assay for the simultaneous detection of NoV GI, NoV GII, and HAV in bivalve shellfish.

To achieve rapid and simultaneous detection of NoV GI, NoV GII, and HAV, a quadruple real-time fluorescence quantitative PCR (RT-qPCR) assay was developed using MS2 bacteriophage as a process control virus. The quadruple RT-qPCR assay effectively detected NoV GI, NoV GII, HAV, and MS2 RNA with detection limits of 10 copies/μL, 10 copies/μL, 10 copies/μL, and 10 copies/μL, respectively, within 1 hour 50 minutes. The quadruple RT-qPCR assay could specifically detect NoV GI, NoV GII, HAV, and MS2 without cross-reactions with other common pathogens, demonstrating good reproducibility with intra-assay and inter-assay coefficients of variation all below 2.

The role of vitamin D in treated and refractory ulcerative colitis patients: a case-control study.

Background: Ulcerative colitis is a form of chronic inflammatory bowel disease (IBD) marked by ongoing inflammation of the mucosal lining that extends from the rectum to the upper part of the colon. Vitamin D regulates immune responses in several autoimmune and inflammatory diseases, including ulcerative colitis. Therefore, the study aims to investigate the role of vitamin D in the pathogenesis and treatment of ulcerative colitis.

Epstein-Barr Virus Infection Presenting With Acute Gastrointestinal Involvement. Report of Two Cases of Epstein-Barr Virus Colitis in Kidney-Transplant Recipients and Scoping Review of the Literature.

Epstein-Barr virus (EBV) is a herpesvirus capable of establishing lifelong latent infections, leading to a wide spectrum of diseases. It can affect multiple organs, including the gastrointestinal tract, typically through lymphoproliferative syndromes or gastric cancer, while acute gastrointestinal disease is rare and poorly understood. Two cases of EBV-induced acute colitis in kidney transplant recipients were described.

Community Pharmacists' Knowledge in Managing Minor Ailments: A Focus on Childhood Gastroenteritis in Saudi Arabia Using a Simulated Patient Approach.

Community pharmacists are frequently approached by patients seeking health advice for minor ailments, particularly for common childhood diseases like diarrhea. Globally, approximately two million children under five years of age die each year due to diarrhea, which remains a significant health concern, especially in developing countries. The purpose of this study was to assess the skills of community pharmacists in addressing and prescribing for simple viral diarrhea in children.

The Bacteriocins Produced by Lactic Acid Bacteria and the Promising Applications in Promoting Gastrointestinal Health.

Bacteriocins produced by lactic acid bacteria (LAB) are promising bioactive peptides. Intriguingly, bacteriocins have health benefits to the host and may be applied safely in the food industry as bio-preservatives or as therapeutic interventions preventing intestinal diseases. In recent years, finding a safe alternative approach to conventional treatments to promote gut health is a scientific hotspot.

The impact of multiplex nested gastrointestinal PCR panel in children with gastroenteridis requiring pediatric infectious disease consultation.

Unlabelled: Infectious gastroenteritis is an important cause of morbidity and mortality, especially in nations with middle and low incomes. In a pediatric gastroenteritis patient, the aim was to determine the therapeutic impact of using the Gastrointestinal Panel in our clinical practice. A single-center retrospective study was designed to evaluate children who were admitted to the hospital for gastroenteritis and had a gastrointestinal panel between August 2021 and January 2024.

Burden of rotavirus and adenovirus gastroenteritis in children and adults hospitalized in two geo-climatically different provinces of Sri Lanka.

Acute gastroenteritis is common in infants and children of Sri Lanka. There is limited information on the burden of rotavirus gastroenteritis in infants and children in Sri Lanka but none in adults. Adenovirus gastroenteritis is not previously reported in Sri Lanka.

Development and application of a quadruplex real-time fluorescence quantitative PCR assay for four porcine digestive pathogens.

Introduction: , , , and are the primary pathogens responsible for gastrointestinal diseases in pigs, posing a significant threat to the health and productivity of pig production systems. Pathogen detection is a crucial tool for monitoring and managing these infections.

Methods: We designed primers and probes targeting the gene of , the 23S gene of , the gene of , and the gene of .

Anti-N-methyl-D-aspartate receptor encephalitis following Human norovirus infection: A case report.

Human norovirus (NoV) is the most common viral cause of acute gastroenteritis worldwide. In addition to affecting the digestive system, NoV also affect the neurological systems. A 15-month-old girl presented with vomiting and diarrhea for 2 days, along with one seizure.

Risk of Transmission of Vaccine-Strain Rotavirus in a Neonatal Intensive Care Unit That Routinely Vaccinates.

Background And Objectives: Many neonatal intensive care units (NICUs) do not give rotavirus vaccines to inpatients due to a theoretical risk of horizontal transmission of vaccine strains. We aimed to determine incidence and clinical significance of vaccine-strain transmission to unvaccinated infants in a NICU that routinely administers pentavalent rotavirus vaccine (RV5).

Methods: This prospective cohort study included all patients admitted to a 100-bed NICU for 1 year.

Detection of Rotavirus, Norovirus, and Astrovirus Causing Acute Diarrhoea in Children by Multiplex PCR in a Tertiary Care Hospital.

Objective: To evaluate the use of a multiplex real-time polymerase chain reaction (RT-PCR) test in detecting three viruses namely Rotavirus, Norovirus (genotypes 1 and 2), and Astrovirus that cause gastroenteritis in children under the age of five years.

Study Design: A cross-sectional study. Place and Duration of the Study: Department of Virology, Armed Forces Institute of Pathology (AFIP), Rawalpindi, Pakistan, from January to July 2023.

Potassium molybdate blocks APN-dependent coronavirus entry by degrading receptor via PIK3C3-mediated autophagy.

Swine enteric coronaviruses pose a significant challenge to the global pig industry, inflicting severe diarrhea and high mortality rates among piglets, and resulting in substantial economic losses. In our clinical practice, we observed that the addition of potassium molybdate (PM) to the feed could dramatically reduce diarrhea and diarrhea-related mortality in piglets. However, the underlying mechanisms remain elusive and merit further investigation.

Altered plasma levels of the SARS-CoV-2-related proteins ACE2 and TMPRSS2 in patients with Crohn's disease.

The SARS-CoV-2 coronavirus infects cells through the cellular receptor angiotensin-converting enzyme 2 (ACE2), and the protease TMPRSS2 for the priming of viral spike protein. Thus, changes in these key proteins due to chronic conditions can increase risk for SARS-CoV2 infection; but significance of changes may differ is these changes correspond to full-length species or proteolytic fragments. Here, we determined that full-length ACE2 decreased in the plasma of uninfected Crohn's disease (CD) patients before treatment onset compared to controls.

Identification of viral protease-dependent cleavage sites within the human astrovirus polyprotein.

Infection by human astrovirus (HAstV), a small, positive-strand RNA virus, is a major cause of gastroenteritis and has been implicated in an increasing number of severe, sometimes fatal, neurological diseases since 2008. Currently, there are no vaccines or antiviral treatments available to treat HAstV infection. An attractive target for antiviral therapeutics is the viral protease due to its essential functions throughout infection.

High prevalence of CTX-M-15 producing Shigella spp. isolated from patients with gastroenteritis in Northeast Iran.

Shigellosis, a diarrheal disease caused by Shigella species, is a significant public health concern, particularly in developing countries with inadequate sanitation systems. This study aimed to investigate the patterns of antibiotic resistance, ESBL and AmpC genes, integrons, and enterotoxin genes in Shigella species isolated from patients with gastroenteritis in Northeast Iran. This cross-sectional study was conducted between January 2017 and December 2019 at a tertiary care hospital in Northeast Iran.

Rotavirus Prevalence in Children with Acute Gastroenteritis Admitted to a Tertiary Hospital in Somalia in 2020-2023: A Retrospective, Single-Center Study.

Purpose: Rotavirus is the leading cause of severe and fatal diarrhea in African children. The aim of this study is to investigate the prevalence of rotavirus in children with acute gastroenteritis admitted to a tertiary hospital in Somalia.

Patients And Methods: 5804 children who applied with complaints of acute gastroenteritis between January 2020 and December 2023 were examined retrospectively.

Molecular detection and quantification of canine parvovirus 2 using a fast and sensitive SYBR green-based quantitative polymerase chain reaction assay in dogs affected with gastroenteritis.

Background And Aim: Viral gastroenteritis in canines is primarily caused by the canine parvovirus 2 (CPV-2). Infections by this virus can cause severe consequences in dogs, such as fever, vomiting, diarrhea, septicemia, systemic inflammation, and immunosuppression. Therefore, the mortality rate of persistent infections caused by this virus is significantly high.

A hybrid approach to study and forecast climate-sensitive norovirus infections in the USA.

Norovirus, responsible for acute gastroenteritis and foodborne diseases in the United States, is influenced significantly by environmental factors. This study employs a hybrid approach to develop a foodborne disease model that incorporates indirect incidence to examine the correlation between norovirus outbreaks and environmental conditions, specifically focusing on the impact of temperature and humidity on virus transmission. By analyzing weekly average climate data and confirmed case data from four United States regions (Southern, Northeastern, Midwestern, and Western), we assess the mortality rates and estimate transmission rates using the inverse method.