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. 2021 Apr 10;71:13–20. doi: 10.1016/j.coi.2021.03.009

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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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Vaccine timelines and uptake from first Gavi-supported introduction for four Vaccine Preventable Diseases (Penta: pentavalent (diphtheria, tetanus, whooping cough, hepatitis B and Haemophilus influenzae type B) vaccine; RVV: rotavirus vaccine; PCV: pneumococcal conjugate vaccine; IPV: inactivate poliomyelitis virus vaccine). Courtesy of International Vaccine Access Center. Source: World Health Organization. WHO/UNICEF Estimates of National Immunization Coverage for 1980-2016, 2017. https://apps.who.int/immunization_monitoring/globalsummary/timeseries/tswucoveragedtp3.html.