In particular, lung ultrasound has been shown to be sensitive and specific for detecting pneumonia and COVID-19 and is particularly useful for following up both conditions.3 Unfortunately, lung ultrasound is rarely used in some paediatric settings, despite being well-established in paediatric and adult practice. Comment on "High rates of antibiotic prescriptions in children with COVID-19 or multisystem inflammatory syndrome: a multinational experience in 990 cases from Latin America". Tackling antibiotic resistance during the COVID-19 pandemic is a new challenge for paediatricians. [Extracted from the article]