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Título: Immunogenicity and safety of primary fractional-dose yellow fever vaccine in autoimmune rheumatic diseases
Autor: TONACIO, Adriana CoraciniPEDROSA, Tatiana do NascimentoBORBA, Eduardo FerreiraAIKAWA, Nadia EmiPASOTO, Sandra GofinetFERREIRA FILHO, Julio Cesar RenteBARROS, Marilia Mantovani SampaioLEON, Elaine PiresLOMBARDI, Suzete Cleusa Ferreira SpinaMENDRONE JUNIOR, AlfredoAZEVEDO, Adriana de SouzaSCHWARCZ, Waleska DiasFULLER, RicardoYUKI, Emily Figueiredo NevesLOPES, Michelle Remiao UgoliniPEREIRA, Rosa Maria RodriguesBARROS, Percival Degrava SampaioANDRADE, Danieli Castro Oliveira deMEDEIROS-RIBEIRO, Ana Cristina deMORAES, Julio Cesar Bertacini deSHINJO, Samuel KatsuyukiMIOSSI, RenataDUARTE, Alberto Jose da SilvaLOPES, Marta HeloisaKALLAS, Esper GeorgesSILVA, Clovis Artur Almeida daBONFA, Eloisa
Citación: PLOS NEGLECTED TROPICAL DISEASES, v.15, n.11, article ID e0010002, 17p, 2021
Resumen: Background Brazil faced a yellow fever(YF) outbreak in 2016-2018 and vaccination was considered for autoimmune rheumatic disease patients(ARD) with low immunosuppression due to YF high mortality. Objective This study aimed to evaluate, prospectively for the first time, the short-term immunogenicity of the fractional YF vaccine(YFV) immunization in ARD patients with low immunossupression. Methods and Results A total of 318 participants(159 ARD and 159 age- and sex-matched healthy controls) were vaccinated with the fractional-dose(one fifth) of 17DD-YFV. All subjects were evaluated at entry(D0), D5, D10, and D30 post-vaccination for clinical/laboratory and disease activity parameters for ARD patients. Post-vaccination seroconversion rate(83.7%vs.96.6%, p = 0.0006) and geometric mean titers(GMT) of neutralizing antibodies[1143.7 (95%CI 1012.3-1292.2) vs.731 (95%CI 593.6-900.2), p< 0.001] were significantly lower in ARD compared to controls. A lower positivity rate of viremia was also identified for ARD patients compared to controls at D5 (53%vs.70%, p = 0.005) and the levels persisted in D10 for patients and reduced for controls(51%vs.19%, p = 0.0001). The viremia was the only variable associated with seroconvertion. No serious adverse events were reported. ARD disease activity parameters remained stable at D30(p>0.05). Conclusion Fractional-dose 17DD-YF vaccine in ARD patients resulted in a high rate of seroconversion rate(> 80%) but lower than controls, with a longer but less intense viremia. This vaccine was immunogenic, safe and did not induce flares in ARD under low immunosuppression and may be indicated in YF outbreak situations and for patients who live or travel to endemic areas.
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Artigos e Materiais de Revistas Científicas - FM/MCM
Departamento de Clínica Médica - FM/MCM

Artigos e Materiais de Revistas Científicas - FM/MIP
Departamento de Moléstias Infecciosas e Parasitárias - FM/MIP

Artigos e Materiais de Revistas Científicas - FM/MPE
Departamento de Pediatria - FM/MPE

Artigos e Materiais de Revistas Científicas - FM/MPT
Departamento de Patologia - FM/MPT

Artigos e Materiais de Revistas Científicas - HC/ICHC
Instituto Central - HC/ICHC

Artigos e Materiais de Revistas Científicas - HC/ICr
Instituto da Criança - HC/ICr

Artigos e Materiais de Revistas Científicas - HC/IOT
Instituto de Ortopedia e Traumatologia - HC/IOT

Artigos e Materiais de Revistas Científicas - LIM/03
LIM/03 - Laboratório de Medicina Laboratorial

Artigos e Materiais de Revistas Científicas - LIM/05
LIM/05 - Laboratório de Poluição Atmosférica Experimental

Artigos e Materiais de Revistas Científicas - LIM/17
LIM/17 - Laboratório de Investigação em Reumatologia

Artigos e Materiais de Revistas Científicas - LIM/31
LIM/31 - Laboratório de Genética e Hematologia Molecular

Artigos e Materiais de Revistas Científicas - LIM/36
LIM/36 - Laboratório de Pediatria Clínica

Artigos e Materiais de Revistas Científicas - LIM/48
LIM/48 - Laboratório de Imunologia

Artigos e Materiais de Revistas Científicas - LIM/56
LIM/56 - Laboratório de Investigação em Dermatologia e Imunodeficiências

Artigos e Materiais de Revistas Científicas - ODS/03
ODS/03 - Saúde e bem-estar


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