Genotypic Diversity of Childhood Rhinovirus Infections.

Our objective was to describe the distribution of rhinovirus (RV) by species and type in both symptomatic and asymptomatic children in a prospective study over multiple years. A large and diverse distribution of RV types was seen among children with and without symptoms. RV-A and RV-C were predominant at all visits.

Liver Transplantation for Refractory Congenital Cytomegaloviral Hepatitis.

Congenital cytomegalovirus (cCMV) is the most common congenital infection. Here, we report on a case of severe, refractory cCMV hepatitis resulting in end-stage liver disease. A male infant born at 37 weeks gestational age presented with petechiae, splenomegaly, and jaundice associated with a direct hyperbilirubinemia, elevated transaminases, and thrombocytopenia. Urine screen was positive for CMV, and he was treated with valganciclovir. He progressed to decompensated cirrhosis with ascites, hypoglycemia, and coagulopathy and was listed for liver transplant at 4 months of age. At 5 months of age, he developed massive hematemesis with hemorrhagic shock and underwent emergent portocaval shunt followed by living donor liver transplant with a left lateral segment graft. Postoperatively, he received CMV immune globulin and intravenous ganciclovir and cleared his viremia by 2 months post-transplant. This case illustrates the diagnostic and management challenges of severe cCMV hepatitis and reports a successful liver transplantation despite active CMV viremia.

Wisconsin Upper Respiratory Symptom Survey for Kids: Validation of an Illness-specific Quality of Life Instrument.

BACKGROUND: Acute respiratory infections (ARIs) are the most common illness seen in the pediatric ambulatory setting. Research in this area is hampered by the lack of validated ARI measures. The aim of this study was to assess the reliability and validity of the Wisconsin Upper Respiratory Symptom Survey for Kids (WURSS-K), a 15-item instrument, which measures illness-specific symptoms and impact on quality of life during an ARI. METHODS: WURSS-K was administered to two populations: (1) children aged 4-10 years recruited from the local community and (2) 9- and 10-year-old children from an ongoing study, the Urban Environment and Childhood Asthma. RESULTS: Overall, 163 children with 249 ARI episodes completed WURSS-K. WURSS-K was analyzed using multiple models to evaluate reliability and validity for a two-factor structure (symptom and functionality) and a single global structure. These models provided evidence of reliability and validity with omega of 0.72 and 0.91 for symptoms and functionality along with the single structure with omega of 0.90. CONCLUSIONS: WURSS-K shows strong psychometric properties for validity and reliability as either a single global factor or a two-factor structure. This instrument will be useful in both therapeutic trials and observational studies among children with ARI in ambulatory settings. IMPACT: WURSS-K is a valid and reliable illness-specific quality of life instrument that evaluates the impacts of ARIs on children. WURSS-K is designed for children 4-10 years of age, for whom there is a lack of validated assessment tools. This now validated instrument will be useful for future observational studies and therapeutic trials among children with ARIs in ambulatory settings.

A Pediatric Infectious Disease Perspective on COVID-19.

This review highlights the clinical and epidemiologic characteristics of coronavirus disease 2019 (COVID-19) in children and neonates and contrasts these features with other common respiratory viruses. Although the majority of infections in children are mild, there are many important, as yet, unanswered questions (specifically, the attack rate in children and the role of children as vectors of infection) that will have a major impact on disease in adults. There are no distinctive clinical characteristics that will allow the infectious disease consultant to make the diagnosis without laboratory testing. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) appears to be less common, with lower morbidity and mortality than respiratory syncytial virus or influenza, and causes less-severe disease in children with cancer than these more common viruses. The range of severity of infection during pregnancy is comparable to infection in nonpregnant cohorts. Intrauterine infection has been documented but is uncommon. A theme of less-severe disease in individuals with modulated immune systems is emerging.