key: cord-0949614-46gga9vr authors: Blumer, Jeffrey L.; Toltzis, Philip title: Pediatric Infectious Disease date: 2005-09-30 journal: Infectious Disease Clinics of North America DOI: 10.1016/j.idc.2005.06.002 sha: 20d3560d3ac2f4326e4f53b5b82bc3676e34018a doc_id: 949614 cord_uid: 46gga9vr nan This issue of the Infectious Disease Clinics of North America includes topics that are of current interest and importance in pediatric infectious diseases. We are delighted to have engaged a group of authors who are accomplished and widely published in each of their topics. It has long been recognized that from the medical standpoint, children are not simply small adults. Many diseases are specific to this age group, and illnesses that occur in both children and adults frequently have manifestations that are unique when they occur in the young. This is especially true for infectious diseases. The topics discussed in this issue can be roughly categorized into three groups. The first describes the clinical appearance of emerging pediatric infections. Among these is Williams' article on newly defined viral respiratory tract pathogens in infants and children. Most prominent among these is metapneumovirus, although severe acute respiratory syndrome and the Netherlands coronaviruses and avian influenza virus in children also are described. Dennehy extensively reviews viral, bacterial, and parasitic causes of pediatric diarrheal syndromes, which together prompt an enormous number of sick child visits in industrialized nations and which remain among the most frequent causes of mortality in infants in the developing world. Massei and colleagues collate the many protean manifestations of Bartonellosis in children, from typical cat-scratch disease to the more unusual syndromes that are beginning to emerge now that the accurate diagnosis of this infection is widely available. Kaplan presents recent data on the explosive occurrence of community-acquired methicillin-resistant Staphylococcus aureus in children and on the increasing breadth and severity of this infection in pediatrics, drawing on his extensive personal experience in Houston and data culled from other areas of the country. Other articles concentrate on issues surrounding antimicrobial use in children. The incidence of fungal infections in very low birth weight newborns continues to increase as modern neonatal intensive care allows the survival of infants of younger and younger gestational age. Benjamin and colleagues offer the most current data on the use of the amphotericin preparations and the newer azoles and echinocandins in this population. Schaad discusses the use of quinolones in pediatrics, offering a reasoned analysis of the strength of the data suggesting a connection between their use and the incidence of arthropathy in young children, and describing their application in selected pediatric populations. As in adult HIV infection, highly active anti-retroviral therapy has transformed pediatric HIV infection into a chronic disease in which the side effects of the therapies often supercede the symptoms from the disease; Leonard and McComsey review the small but growing body of data examining the effects of longterm use of anti-HIV drugs in children. Finally, Markenson reviews the treatment of agents of bioterrorism in children, highlighting the aspects of these treatment schedules that differ from those applied to adults. A third group of articles discusses epidemiologic issues pertinent to pediatric infectious diseases. Few recent events in pediatrics have been as important as the introduction of the conjugate pneumococcal vaccines in the routine pediatric immunization schedule, but has it made a difference? The review by Toltzis and Jacobs describes how this vaccine has changed the epidemiology of invasive and noninvasive pneumococcal infection in young children and their adult contacts. Asthma remains one of the most prevalent causes of morbidity in pediatrics; the link between infectious bronchiolitis in infancy and the incidence of reactive airway disease in later childhood has been debated for over a decade. The article by Ruuskanen and colleagues discusses the underlying pathophysiology that makes this association credible and catalogs and critiques the many studies purporting to show this connection. Coffin and Zaoutis offer a primer on infection control in a pediatric hospital, emphasizing the differences between the epidemiology and containment of nosocomial infections in children and adults. These articles reflect many of the most topical issues that have appeared in pediatric infectious diseases over the past several years. They frequently xiv PREFACE Together they should provide the reader with current information to confront some of the most important issues emerging in pediatric infections diseases today MD University Hospitals Health System Rainbow Babies and Children's Hospital Pediatric Pharmacology and Critical Care