COVID-19 Vaccinations, Infections, and Outcomes Among 784 People Living with HIV.

Introduction: Variants of COVID-19 are responsible for 700 million infections and 7 million deaths worldwide. Vaccinations have high efficiency in preventing infection and secondary benefits of reducing COVID-19 hospital admissions, attenuating disease severity and duration of illness. Conflicting reports were published regarding COVID-19 among PLWH.

Iron deficiency anemia among infants: a retrospective cohort study.

Postnatal iron deficiency, especially from ages 6 to 24 months, has long-term consequences lasting into adolescence and adulthood. We aimed to characterize iron deficiency anemia among infants from one central Israeli district by demographic and laboratory parameters. A retrospective chart review was performed on all infants from a single district who had undergone a complete blood count as part of a routine survey for iron deficiency anemia during 2010-2021.

The Abbreviated Methacholine Challenge Test is Safe for Children.

Objective: To evaluate the safety of an abbreviated methacholine challenge test (MCT) protocol in children.

Study Design: This prospective, observational study enrolled children aged 6 through 18 years referred for the MCT. The abbreviated protocol was initiated with a methacholine dose of 0.

Phlegmonous gastritis: Review of the pathophysiology.

Phlegmonous gastritis is a rare infection of the gastric wall. Clinical presentation of phlegmonous gastritis is generally non-specific and includes epigastric pain, nausea, vomiting and fever. The infection results from a transmural infection of the stomach.

Food-induced anaphylaxis during infancy is associated with later sleeping and eating disorders.

Background: Accumulating evidence suggests that food-induced anaphylaxis (FIA) may induce different psychological disorders (PDs). In this study, we aimed to further evaluate the effect of FIA, specifically when occurring in early life, on subsequent PDs development.

Methods: We conducted a population-based, retrospective, matched-cohort study of pediatric patients (age ≤ 18 years) treated at the "Clalit" healthcare organization during the period 2001-2021.

Modification of allergen subcutaneous immunotherapy safety precautions and systemic allergic reaction rate reduction.

Despite their life-threatening potential, medical team mistakes during subcutaneous immunotherapy are rarely discussed. Real data are missing, and a survey study estimated that dosing errors are responsible for 25% of systemic reactions during immunotherapy. To minimize errors, we modified our safety precautions and compared the rates of systemic allergic reactions before and after the change.

Early childhood allergy linked with development of attention deficit hyperactivity disorder and autism spectrum disorder.

Background: Previous studies reported controversial results regarding the association between allergic disorders and attention deficit hyperactivity disorder (ADHD)/autism spectrum disorder (ASD). The aim of this article was to investigate whether allergic disorders are associated with ADHD/ASD in a large cohort of pediatric patients.

Methods: A retrospective study using the pediatric (0-18 year) database (ICD-9-CM codes) of Clalit Health Services during the years (2000-2018).