Introduction
Covid19 pandemic has affected >25 million people globally. It’s very rare in children and mostly non-fatal. In children with blood and cancer disorders so far published data suggests most children are either asymptomatic or get mild disease (1,2). Reinfection after getting covid19 once was thought not to happen as patient would have developed immunity against the virus. But recently a case has been reported from Hongkong where the second episode of asymptomatic infection occurred 142 days after the first symptomatic episode in an apparently immunocompetent patient. Epidemiological, clinical, serological and genomic analyses confirmed that the patient had re-infection with another strain of SARSCOV2 virus instead of persistent viral shedding from first infection (3). Here we report two children who got re-infected with SARSCOV2 after recovering fully and developing IgG antibodies it. Whole genome sequencing could not be performed for two episodes. Laboratory results, including RT-PCR Ct values and serum SARS-CoV-2 IgG, were analyzed.