Novel coronavirus can infect small children. Novel coronavirus is highly infectious and can be transmitted from person to person, so it is defined as a category B infectious disease. People are not resistant to the novel coronavirus, and people are universally susceptible to it. Once children are infected with novel coronavirus, their clinical symptoms are sometimes atypical and may include nausea, poor appetite, diarrhea, mental lethargy, and in some cases, fever, shortness of breath and other clinical symptoms. Avoid touching or rubbing the eyes with hands and avoid touching the nose and mouth with hands, and pay attention to hand hygiene.