{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["7(8)"],"submitter":["Mendes-de-Almeida DP"],"pubmed_abstract":["<h4>Background</h4>The emergence of new variants of SARS-CoV-2 has led to the administration of different booster vaccines to mitigate COVID-19. Vaccines with adenoviral vectors have been rarely associated with vaccine-induced immune thrombotic thrombocytopenia (VITT).<h4>Objectives</h4>This study aimed to describe 15 cases of VITT after the third and fourth doses of the COVID-19 vaccine in Brazil.<h4>Methods</h4>Cases were reported after all kinds of anti-SARS-CoV-2 booster vaccinations between October 17, 2021, and September 4, 2022.<h4>Results</h4>Of the 26 suspected cases, 15 cases of VITT were analyzed. Of these, 10 were classified as definite VITT, 2 as probable, 1 as possible, and 2 as unlikely. The estimated frequency of definite, probable, or possible VITT was 0.33 cases per milli"],"journal":["Research and practice in thrombosis and haemostasis"],"pagination":["102243"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC10772875"],"repository":["biostudies-literature"],"pubmed_title":["Vaccine-induced immune thrombotic thrombocytopenia post COVID-19 booster vaccination in Brazil: a case series."],"pmcid":["PMC10772875"],"pubmed_authors":["Zago L","Takey PRG","Saraiva Pedro R","Furtado BE","Melo de Amorim Filho L","Sousa Maia ML","Ferreira DS","Brazilian VITT Investigative Collaboration Group","Pereira TDS","Castro TDM","Jenifer da Silva Araujo Cunha J","Garcez T","Rodrigues JV","Nascimento Costa NM","Mendes-de-Almeida DP","Ferreira R","Nunes GT","Morgenstern GK","Filho RC","Abreu DL","Pietrowski Bertuol AP","Palm CW","Freire CR","Bertollo Gomes Porto V","Marques de Figueiredo R","Julio LC","Mouta Nunes de Oliveira P","Burger M","Fernandes EG","Kamoi TO","Lima Frizzera RL","Lignani LK","Genuino de Souza T","Vitiello Teixeira G","Xavier JR","Greffe N","Mattos de Carvalho I","Bise Viegas AP"],"additional_accession":[]},"is_claimable":false,"name":"Vaccine-induced immune thrombotic thrombocytopenia post COVID-19 booster vaccination in Brazil: a case series.","description":"<h4>Background</h4>The emergence of new variants of SARS-CoV-2 has led to the administration of different booster vaccines to mitigate COVID-19. Vaccines with adenoviral vectors have been rarely associated with vaccine-induced immune thrombotic thrombocytopenia (VITT).<h4>Objectives</h4>This study aimed to describe 15 cases of VITT after the third and fourth doses of the COVID-19 vaccine in Brazil.<h4>Methods</h4>Cases were reported after all kinds of anti-SARS-CoV-2 booster vaccinations between October 17, 2021, and September 4, 2022.<h4>Results</h4>Of the 26 suspected cases, 15 cases of VITT were analyzed. Of these, 10 were classified as definite VITT, 2 as probable, 1 as possible, and 2 as unlikely. The estimated frequency of definite, probable, or possible VITT was 0.33 cases per milli","dates":{"release":"2023-01-01T00:00:00Z","publication":"2023 Nov","modification":"2026-06-01T19:54:23.151Z","creation":"2025-04-06T13:12:55.468Z"},"accession":"S-EPMC10772875","cross_references":{"pubmed":["38193064"],"doi":["10.1016/j.rpth.2023.102243"]}}