Paediatrics and international child health
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Paediatr Int Child Health · Feb 2021
ReviewHuman and novel coronavirus infections in children: a review.
Coronaviruses, seven of which are known to infect humans, can cause a spectrum of clinical presentations ranging from asymptomatic infection to severe illness and death. Four human coronaviruses (hCoVs)-229E, HKU1, NL63 and OC43-circulate globally, commonly infect children and typically cause mild upper respiratory tract infections. Three novel coronaviruses of zoonotic origin have emerged during the past two decades: severe acute respiratory syndrome coronavirus (SARS-CoV-1), Middle East respiratory syndrome coronavirus (MERS-CoV) and the recently discovered severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) which is the cause of the ongoing coronavirus disease 2019 (COVID-19) pandemic. ⋯ Children may play an important role in the transmission of infection and outbreak dynamics and could be a key target population for effective measures to control outbreaks. The unintended consequences of the unprecedented scale and duration of pandemic control measures for children and families around the world should be carefully examined. Abbreviations: 2019-nCoV, 2019 novel coronavirus; ADEM, acute demyelinating encephalomyelitis; AAP, American Academy of Pediatrics; ACE-2, angiotensin-converting enzyme 2; ARDS, acute respiratory distress syndrome; BCG, bacillus Calmette-Guérin; BNP, brain natriuretic peptide; CDC, Centers for Disease Control and Prevention; CRP, C-reactive protein; CSF, cerebrospinal fluid; COVID-19, coronavirus disease 2019; CT, computed tomography; CXR, chest X-ray; DOL, day of life; hCoV, human coronavirus; ICU, intensive care unit; IL, interleukin; IVIG, intravenous immunoglobulin; KD, Kawasaki disease; LDH, lactate dehydrogenase; MERS, Middle East respiratory syndrome; MERS-CoV, Middle East respiratory syndrome coronavirus; MEURI, monitored emergency use of unregistered and experimental interventions; MIS-C, multi-system inflammatory syndrome in children; PCR, polymerase chain reaction; PICU, paediatric intensive care unit; RNA, ribonucleic acid; RCT, randomised-controlled trial; RSV, respiratory syncytial virus; SARS, severe acute respiratory syndrome; SARS-CoV-1, severe acute respiratory syndrome coronavirus 1; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2; TNF-alpha, tumour necrosis factor alpha; UK United Kingdom; UNICEF, United Nations Children's Fund; USA, United States of America; WHO, World Health Organization.
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Despite the worldwide spread of SARS-CoV-2 infection (COVID-19), knowledge of the different clinical presentations, ways of transmission, severity and prognosis in children and adolescents is limited. An increasing number of reports describe some of these characteristics in this age range. A non-systematic review was undertaken using MEDLINE (PubMed), LILACS (VHL), Scopus, Web of Science, Cochrane and CAPES Portal databases from 1 January until 30 September 2020 [103] with the search terms SARS-CoV-2, COVID-19, child, children, youth, adolescent and newborn to identify the more recent clinical aspects of SARS-CoV-2 infection in children. ⋯ The impact of COVID-19 infection in the perinatal period is described in detail. Knowledge of the various clinical presentations of SARS-CoV-2 in children and adolescents allows the paediatrician to diagnose earlier, monitor warnings signs, implement treatment and, especially, establish preventive measures. Abbreviations : ACE-2, angiotensin-converting enzyme 2; ARDS, acute respiratory distress syndrome; ARF, acute rheumatic fever; CAA, coronary artery aneurysms; CK-MB, creatine kinase-MB; COVID-19, coronavirus disease-2019; HLA, specific human leucocyte antigen; IPC, infection prevention and control; IVIG, intravenous immunoglobulin; KD, Kawasaki disease; MIS-C, COVID-19-associated multisystem inflammatory syndrome; RNA, ribonucleic acid; RT-PCR, reserve transcription-polymerase chain reaction; SARS-CoV-2, severe acute respiratory syndrome coronavirus-2; TCT, thoracic computed tomography; TSS, toxic shock syndrome; WHO, World Health Organization.