{"id":1324949,"name":"Number of countries that are administering chickenpox vaccine","unit":"countries","createdAt":"2026-10-09T11:54:17.000Z","updatedAt":"2026-10-09T12:36:53.000Z","coverage":"","timespan":"2001-2025","datasetId":8194,"columnOrder":0,"shortName":"countries__description_varicella_vaccine","catalogPath":"grapher/who/2026-10-07/vaccination_introductions/vaccination_introductions_sum#countries__description_varicella_vaccine","dimensions":{"years":{"values":[{"id":2001},{"id":2002},{"id":2003},{"id":2004},{"id":2005},{"id":2006},{"id":2007},{"id":2008},{"id":2009},{"id":2010},{"id":2011},{"id":2012},{"id":2013},{"id":2014},{"id":2015},{"id":2016},{"id":2017},{"id":2018},{"id":2019},{"id":2020},{"id":2021},{"id":2022},{"id":2023},{"id":2024},{"id":2025}]},"entities":{"values":[{"id":355,"name":"World","code":"OWID_WRL"}]}},"descriptionShort":"Number of countries that are administering chickenpox vaccine as part of their national vaccination program.","type":"int","patchConfigIdETL":"01a12083-9892-731f-9c87-dcf84a78e0eb","dataChecksum":"11679492783231756802","metadataChecksum":"-1644790549039224362","datasetName":"WHO Immunization Data – Vaccination Introductions","updatePeriodDays":365,"datasetVersion":"2026-10-07","nonRedistributable":false,"display":{"name":"Chickenpox vaccine","unit":"countries","numDecimalPlaces":0},"schemaVersion":2,"presentation":{"titlePublic":"Number of countries administering chickenpox vaccine","attributionShort":"WHO","topicTagsLinks":["Vaccination"]},"descriptionKey":"- The chickenpox (varicella) vaccine protects against varicella-zoster virus, which causes chickenpox, a highly contagious disease.\n- Vaccines included in a country’s vaccination program are those that are provided and recommended through routine services.\n- They may or may not be mandatory and their coverage rates may vary widely.\n- When countries do not have a vaccine in their schedule, this does not necessarily mean that the vaccine is completely unavailable in those countries, as it may be available commercially.","origins":[{"id":28069,"titleSnapshot":"WHO Immunization Data – Vaccination Introductions","title":"WHO Immunization Data – Vaccination Introductions","description":"The World Health Organization (WHO) provides data on the introduction of vaccines into vaccine schedules for countries around the world. The data is collected through the WHO/UNICEF Joint Reporting Form on Immunization.","producer":"World Health Organization","citationFull":"Vaccine Introductions – WHO/UNICEF Joint Reporting Form on Immunization (2026), World Health Organization and UNICEF.","attributionShort":"WHO","urlMain":"https://immunizationdata.who.int/global?topic=Vaccine-introduction&location=","urlDownload":"https://srhdpeuwpubsa-geecgzbpd5h0fueu.z01.azurefd.net/whdh/WIISE/export/vaccine-introduction-data.xlsx","dateAccessed":"2026-10-07","datePublished":"2026-10-07","license":{"url":"https://www.who.int/about/policies/publishing/copyright","name":"CC BY-NC-SA 3.0 IGO"}}]}