COVID-19 disease is a primarily respiratory disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmitted by inhaling infected droplets. The primary animal reservoir for the coronavirus virus is the bat. For this review, we searched PubMed on April 30, 2023, with the search strategy: "COVID-19" OR "Coronavirus" AND "Children" AND "Clinical symptoms" AND "Diagnosis" AND "Management." We got 19 search results, including all types of the studies like narrative reviews, systematic reviews, meta-analyses, case reports, observational studies, and randomized control trials. We included 11 studies in this review after exclusion of some of these studies. Delta variant transmission has mean incubation of 4.3 days, whereas the Alpha and Beta variant has an incubation period of 5 days. Furthermore, Omicron has a mean incubation period of 3-4 days. Hence the incubation period depends on the variant of the virus. Although primarily asymptomatic, the clinical features in children are fever, cough, sore throat, breathlessness, fatigue, and malaise. Those with comorbidities like obesity, diabetes, cancer, or other preexisting cardiac and pulmonary conditions have an increased risk of complications. Following the recovery from COVID-19, respiratory complications include croup, bronchiolitis, and multisystem inflammatory syndrome in children (MIS-C). The diagnosis is confirmed by Reverse transcriptase -Polymerase chain reaction (RT-PCR) of the respiratory specimen from the oral cavity, nose, and pharynx. The primary management of mild COVID-19 is supportive care. This review discusses the epidemiology, mode of transmission, clinical presentation, diagnosis, management, and vaccination of COVID-19 among children.