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COVID-19 in children: current evidence and key questions #MMPMID33027185
Munro APS; Faust SN
Curr Opin Infect Dis 2020[Dec]; 33 (6): 540-547 PMID33027185show ga
PURPOSE OF REVIEW: SARS-CoV-2 infection in children has been less well characterized than in adults, primarily due to a significantly milder clinical phenotype meaning many cases have gone undocumented by health professionals or researchers. This review outlines the current evidence of the epidemiology of infection in children, the clinical manifestations of disease, the role of children in transmission of the virus and the recently described hyperinflammatory syndrome observed later during the first phase of the pandemic. RECENT FINDINGS: International seroprevalence studies have found younger children to have lower prevalence of antibodies to SARS-CoV-2, indicating they have not been infected as much as adults. This may be due to shielding by school closures, or by a reduced susceptibility to infection, as indicated by a significantly lower attack rate in children than adults in household contact tracing studies. The most well recognized symptoms in adults of cough, fever, anosmia and ageusia are less frequent in children, who may often present with mild and nonspecific symptoms, or with gastrointestinal symptoms alone. Risk factors for severe disease in children include chronic lung, cardiac or neurological disease, and malignancy. However, the absolute risk still appears very low for these cohorts. A new hyperinflammatory syndrome has emerged with an apparent immune cause. SUMMARY: Important questions remain unanswered regarding why children have mild disease compared with adults; how children of different ages contribute to asymptomatic community transmission of the virus; and the pathophysiology of and most appropriate investigation and treatment strategies for the novel hyperinflammatory syndrome.
Curr+Opin+Infect+Dis 2020 ; 33 (6): 540-547
