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. 2022 Aug 9;251:196–201.e4. doi: 10.1016/j.jpeds.2022.07.056

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Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Days between full vaccination and positive SARS-CoV-2 test for 98 patients with a successfully sequenced SARS-CoV-2 nasopharyngeal sample. Samples are organized from longest to shortest period between being fully vaccinated (ie, day 0 is 14 days after receiving dose 2) and infection date. Among the 98 samples, 93 (94.9%) were Omicron (blue), 4 (4.1%) were Delta (yellow), and 1 (1%) was Gamma (red). For the 5 non-Omicron samples, the number of days between vaccination and a positive SARS-CoV-2 test is labeled beside the line.