children(37) COVID-19(21) SARS-CoV-2(10) tested(10) omicron(9) Chickenpox(9) variant(9) pandemic(8) Prevalence(8) Infection(6) had no(6) Swab(6) parent(6) Fever(6) nose and throat(6) positive(6) antibody(6) SARS-CoV-2 detection(6) varicella.(6) COVID‐19(6) Evidence(5) Inflammatory(5) SARS‐CoV‐2(5) country(5) children with COVID-19(5) age(5) female(5) coronavirus(5) Factor(5) Care(5)