Early Bone Ischemia in Pediatric Acute Hematogenous Osteomyelitis and its Association With Progression to Chronic Osteomyelitis: New Insights From Gadolinium-enhanced Subtraction MRI.

Background: Acute hematogenous osteomyelitis (AHO), the most common osteoarticular infection in children, carries a significant risk for chronic complications. Predicting chronic complications early in the course of disease is challenging. The underlying pathogenesis of complications is not fully understood.

Septic shock and fulminant hepatic failure secondary to Q fever in a child with sickle cell disease: First case report.

Q fever is a zoonosis with a worldwide distribution that is caused by the intracellular bacterium Coxiella burnetii. Although most infections in children are asymptomatic and self-limiting, some experience severe or chronic manifestations. Its manifestations in patients with sickle cell disease are unknown, as there are no reports currently.

The Burden of Human Parechoviruses Among Children in Oman: A retrospective study.

Objectives: This study aimed to evaluate the burden, clinical and laboratory features and outcomes of human parechoviruses (HPeVs) infection among children in Oman.

Methods: This retrospective study included children (aged <18 years) with molecularly proven HPeV infection who were managed at Sultan Qaboos University Hospital, Muscat, Oman, between January 2017 and December 2019. Data were obtained from the patients' medical records and analysed to describe their demographics, clinical and laboratory features, management and outcomes.

A comparative study of SARS-CoV-2 and common human coronavirus infections among children presenting to tertiary care in Oman.

Objectives: To compare clinical manifestations, laboratory characteristics, and outcomes of children presenting to tertiary care with SARS-CoV-2 or common human coronavirus (HCoV) infection.

Methods: Children 13 years of age or younger presenting in 2020 with SARS-CoV-2 and those presenting with HCoV between 2017 and 2019 were included. Clinical and laboratory features were compared using appropriate statistical tests.

A global epidemiological analysis of COVID-19 vaccine types and clinical outcomes.

Objectives: To compare messenger RNA (mRNA)-based and adenovirus-vectored vaccines (ADVVs) with inactivated virus vaccines (IVVs) using real-world aggregate data.

Methods: We performed longitudinal analyses of publicly accessible epidemiological, clinical, virological, vaccine-related, and other public health data from 41 eligible countries during the first half of 2021. The relationships between vaccination coverage and clinical outcomes were analyzed using repeated measures correlation analyses and mixed-effects modeling to adjust for potential mediating and confounding factors.

BCL10 loss-of-function novel mutation leading to atypical severe combined immunodeficiency.

Background: Severe combined immunodeficiency (SCID) is characterized by severe, early-onset infection in infants. B-cell lymphoma/leukemia (BCL) 10 defects causing SCID have been reported previously in two patients.

Material & Methods: A seven-month-old female infant was admitted with bilateral pneumonia requiring ventilatory support.

Countries with similar COVID-19 vaccination rates yet divergent outcomes: are all vaccines created equal?

The world is currently engaged in a race of vaccination versus infection in an effort to control the COVID-19 pandemic. Some countries have already achieved high vaccination rates, offering a glimpse into the so-called "post-vaccination" world. We describe here a striking comparison between the similar-sized and neighboring countries of Bahrain and Qatar.

Critical pertussis: A multi-centric analysis of risk factors and outcomes in Oman.

Objectives: To identify risk factors and outcomes of patients with critical pertussis.

Design: Retrospective observational cohort study.

Setting: Sultan Qaboos University Hospital and The Royal Hospital, Muscat, Oman.

Prediction of Adverse Outcomes in Pediatric Acute Hematogenous Osteomyelitis.

Background: Clinicians cannot reliably predict complications of acute hematogenous osteomyelitis (AHO).

Methods: Consecutive cases of AHO from 2 pediatric centers in the United States were analyzed retrospectively to develop clinical tools from data obtained within 96 hours of hospitalization to predict acute and chronic complications of AHO. Two novel composite prediction scores derived from multivariable logistic regression modeling were compared with a previously published severity of illness (SOI) score, C-reactive protein (CRP), and erythrocyte sedimentation rate (ESR) using area under the receiver operating characteristic curve analyses.

A ten-year retrospective evaluation of acute flaccid myelitis at 5 pediatric centers in the United States, 2005-2014.

Background: Acute flaccid myelitis (AFM) is a severe illness similar to paralytic poliomyelitis. It is unclear how frequently AFM occurred in U.S.

Enterovirus D68 and Panton-Valentine Leukocidin-Positive Staphylococcus aureus Respiratory Coinfection with Fatal Outcome.

A previously healthy 10-year-old girl with a 2-day history of upper respiratory illness and fever rapidly developed respiratory failure and sepsis with leukopenia, and expired despite attempts at resuscitation. Postmortem examination revealed bilateral necrotizing pneumonia and evidence of disseminated intravascular coagulation. Nasopharyngeal swabs and lung tissue submitted to the Centers for Disease Control and Prevention (CDC) were positive for Enterovirus D68 (EV-D68).

Heterologous expression of Mytilus californianus foot protein three (Mcfp-3) in Kluyveromyces lactis.

Mytilus californianus foot protein three (Mcfp-3) was successfully expressed in the yeast, Kluyveromyces lactis. The first nine amino acids (YPYDVPDYA) from the human-influenza-virus hemagglutinin (HA) protein were fused to the amino terminus of Mcfp-3 (HA-Mcfp-3) to facilitate identification and purification. HA-Mcfp-3 was purified to a concentration of 1mg/L using HA affinity chromatography.