Wrth lunio’r cyngor yn ymwneud ag imiwneiddio plant, mae’r JCVI wedi nodi’n gyson y dylid canolbwyntio ar y manteision a’r niweidiau posibl sy’n gysylltiedig â brechu i blant a phobl ifanc eu hunain, gan sicrhau mai atal plant a phobl ifanc rhag cael Covid-19 difrifol (mynd i’r ysbyty a marwolaethau) yw’r prif nod. Drwy gydol y pandemig, mae astudiaethau wedi dangos bod plant yn llawer llai tebygol o gael Covid-19 difrifol o gymharu ag oedolion. Ar gyfer y rhan fwyaf o blant, caiff haint SARS-CoV-2 ei gysylltu â symptomau ysgafn, neu dim symptomau o gwbl.
When formulating advice in relation to childhood immunisations, the JCVI has consistently maintained that the focus should be on the potential benefits and harms of vaccination to children and young people themselves, with the prevention of severe Covid-19 (hospitalisations and deaths) in children and young people the primary aim.Throughout the pandemic, studies have shown that children are much less likely to develop severe Covid-19 disease than older adults. For the vast majority of children, SARS-CoV-2 infection is associated with no, or mild, symptoms.