OBJECTIVES To describe the clinical features of patients admitted to the pediatric intensive care unit (PICU) with acute lower respiratory tract infection (LRTI) attributable to influenza A pH1N1 virus and compare them with those admitted with LRTI due to other viral pathogens. DESIGN Retrospective, observational, comparative study. SETTING PICU in a university-affiliated, tertiary-care, pe...

To clarify the endemic status of Chlamydia pneumoniae in Korea, the incidence of antibodies in 564 serum samples from healthy individuals, patients with respiratory infection, and cord blood specimens was evaluated. We conclude that C. pneumoniae infection is highly endemic in Korea and that this infection is associated with acute respiratory diseases.

\s=b\Serum samples from 184 Infants and children whose blood was drawn during a clinic visit were tested for antibody to Chlamydia trachomatis, Epstein-Barr virus, and cytomegalovirus. Lifetime illness history was obtained from clinic records. Fifteen percent had anti\p=n-\Ctrachomatis IgM antibody. Anti\p=n-\Ctrachomatis IgM without IgG was significantly associated with upper respiratory tract...

mental isolate (1,2). The existence of MATa in nature is also supported by recent studies designed to established the origin of the serotype AD strains (4,5). These studies demonstrated that AD strains were diploid or aneuploid hybrids derived from a fusion of serotype A and D parents and that several of them were harboring a serotype A MATa locus. These hybrid strains have been found fairly of...

Coronavirus disease 2019, caused by severe acute respiratory syndrome coronavirus 2, has recently become the number one problem affecting global health. Coronavirus disease 2019 is principally recognized by its respiratory manifestations; however, recent studies have shown an increasing number of patients with gastrointestinal complaints like diarrhea, nausea, vomiting, and abdominal discomfort...

OBJECTIVE Parent-reported symptoms are frequently used to triage children, but little is known about which symptoms identify children with serious respiratory infections. The authors aimed to identify symptoms and triage findings predictive of serious respiratory infection, and to quantify agreement between parent and nurse assessment. DESIGN Prospective diagnostic cohort study. SETTING Pae...

Whether severe acute respiratory syndrome-associated coronavirus (SARS-CoV) infection can be asymptomatic is unclear. We examined the seroprevalence of SARS-CoV among 674 healthcare workers from a hospital in which a SARS outbreak had occurred. A total of 353 (52%) experienced mild self-limiting illnesses, and 321 (48%) were asymptomatic throughout the course of these observations. None of thes...

background: the recent studies show that rotavirus is important cause of the acute gastroenteritis. the aim of this review is to estimate the number of rotavirus infection among iranian children by performing a systematic review and estimating a pooled data. methods: we performed a systematic literature review in relevant databases including pubmed, medline, ovid, sid, magiran, and iranmedex. s...

BACKGROUND Influenza virus and respiratory syncytial virus (RSV) are among the most common viruses causing infections of the lower respiratory tract in young children. Although there are important differences in the immunopathogenesis of these 2 viral pathogens, little is known about how they affect antigen-presenting cells in children with acute infections. METHODS To characterize the immune...