Results 41 to 50 of about 7,222 (160)

Pre‐Existing Th1 Immunity Outperforms Age in Predicting Antibody Responses to SARS‐CoV‐2 Inactivated Vaccines

Advanced Science, Volume 13, Issue 6, 30 January 2026.
Challenging the focus on age, this study finds pre‐existing T helper 1 cells are the key biomarker for predicting antibody response to SARS‐CoV‐2 inactivated vaccines. In both mice and humans, high responders exhibited elevated baseline T helper 1 cells, which correlated with robust humoral immunity, offering crucial guidance for improving vaccine ...
Chanyuan Ye, Xiaoli Zhang, Lingfeng Qiu, Jia Ji, Jueqing Gu, Hongyu Jia, Yingfeng Lu, Jiyang Chen, Zelu Meng, Jiangshan Lian, Hangping Yao, Xun Zeng, Yida Yang   +12 more
wiley   +1 more source

Immunogenicity of BNT162b2 and CoronaVac boosters in fully vaccinated individuals with CoronaVac against SARS-CoV-2: A Longitudinal Study

, 2022
Objective: There is a need for the immunogenicity of different boosters after widely used inactivated vaccine regimens. We aimed to determine the effects of BNT162b2 and CoronaVac boosters on the humoral and cellular immunity of individuals who had two doses of CoronaVac vaccination.
Füsun Can, Zeynep Ece Kuloğlu, Rojbin El, Gülen Esken, Yeşim Tok, Zeynep Talay, Tayfun Barlas, Mert Ahmet Kuskucu, Özgür Albayrak, Özlem Doğan, Serap Şimşek Yavuz, Kenan Midilli, Önder Ergönül   +12 more
openaire   +1 more source

Phenotypic and functional changes of T cell subsets after CoronaVac vaccination [PDF]

, 2022
BACKGROUND: The pandemic coronavirus disease 2019 (COVID-19) is a major global public health concern and several protective vaccines, or preventive/therapeutic approaches have been developed.
Nithichanon, Arnone, Meesing, Atibordee, Lulitanond, Viraphong, Chareonsudjai, Sorujsiri, Pipattanaboon, Chonlatip, Puthavathana, Pilaipan, Aromseree, Sirinart, Edwards, Steven W, Phanthanawiboon, Supranee, Kanthawong, Sakawrat, Lerdsamran, Hatairat, Edwards, Steven W., Laohaviroj, Marut, Chonlapan, Arunya, Yordpratum, Umaporn, Overgaard, Hans J., Salao, Kanin, Prasertsopon, Jarunee, Wongratanacheewin, Surasakdi, Thapphan, Chakrit, Kamuthachad, Ludthawun, Kamsom, Chatcharin, Phoksawat, Wisitsak, Overgaard, Hans J, Nawawishkarun, Punnapat   +24 more
core   +1 more source

Genomic Surveillance of SARS‐CoV‐2 in Rio de Janeiro (2020–2021): Temporal Distribution of Viral Variants During the Early Pandemic Genomic Surveillance of SARS‐CoV‐2 in Brazil

Advances in Virology, Volume 2026, Issue 1, 2026.
Genomic surveillance of SARS‐CoV‐2 is essential for monitoring the emergence and spread of variants in complex urban settings such as Rio de Janeiro, one of the epicenters of Coronavirus disease 2019 (COVID‐19) in Brazil. This retrospective observational study aimed to describe the temporal distribution of SARS‐CoV‐2 variants between October 2020 and ...
Priscila de Jesus Fajardo, Léo Freitas Corrêa, Thays Cristine dos Santos Vieira, Carlos Otávio Brandão, Rodrigo Pratte-Santos, Olga Morozova   +5 more
wiley   +1 more source

Effect of BTN162b2 and CoronaVac boosters on humoral and cellular immunity of individuals previously fully vaccinated with CoronaVac against SARS‐CoV‐2: A longitudinal study

Allergy, 2022
AbstractBackgroundIt is essential to know about immune response levels after booster doses of the two different types of vaccines, mRNA, and the inactivated, currently used against COVID‐19. For this purpose, we aimed to determine the effects of BNT162b2 (BNT) and CoronaVac (CV) boosters on the humoral and cellular immunity of individuals who had two ...
Zeynep Ece Kuloğlu, Rojbin El, Gulen Guney‐Esken, Yeşim Tok, Zeynep Gülçe Talay, Tayfun Barlas, Mert Ahmet Kuskucu, Özgür Albayrak, Özlem Doğan, Serap Şimşek Yavuz, Kenan Midilli, Önder Ergönül, Füsun Can   +12 more
openaire   +2 more sources

Neutralizing antibodies induced by homologous and heterologous boosters in CoronaVac vaccines in Chile

, 2023
Objectives:To determine the impact of a booster dose on the humoral response in individuals inoculated with a complete schedule of any SARS-CoV-2 vaccine, we evaluated the neutralizing antibody (NAb) titres of homologous or heterologous booster doses ...
Rivas, Solange, Gaete-Argel, Aracelly, Soto-Rifo, Ricardo, Araos, Rafael, Valiente-Echeverría, Fernando, Acevedo, Johanna, González, Cecilia, Jara, Alejandro, Acevedo, Mónica L., Jarpa, Stephan, Pizarro, Pablo, Espinoza, Daniela   +11 more
core   +1 more source

Immunosuppressed Patients With Inflammatory Bowel Disease Have Reduced Cell‐Mediated Immunity but Maintain Normal Humoral Immunity in Response to SARS‐CoV‐2 Vaccination

GastroHep, Volume 2026, Issue 1, 2026.
Objective The aim of this study was to investigate the cell‐mediated immune response to SARS‐CoV‐2 vaccination in patients with inflammatory bowel disease (IBD) and its relationship with IgG antibodies. Methods This cross‐sectional observational study included 138 consecutive patients (1:1 ratio of Crohn′s disease and ulcerative colitis).
Magno Luís Costa Pereira, Samara Galdino de Azevedo, Isadora Schmukler de Lima, Jessica Pronestino de Lima Moreira, Leda dos Reis Castilho, Luciana Silva Rodrigues, Luís Cristóvão de Moraes Sobrino Pôrto, Heitor Siffert Pereira de Souza, Ana Teresa Pugas Carvalho, Than Than Aye   +9 more
wiley   +1 more source

BNT162b2 or CoronaVac as the Third Dose against Omicron: Neutralizing Antibody Responses among Transplant Recipients Who Had Received Two Doses of CoronaVac

Viruses, 2022
We evaluated neutralizing antibodies against the Omicron variant and Anti-Spike IgG response in solid organ (SOT) or hematopoietic stem cell (HSTC) recipients after a third dose of BNT162b2 (BNT) or CoronaVac (CV) following two doses of CV. In total, 95 participants underwent SOT (n = 62; 44 liver, 18 kidney) or HSCT (n = 27; 5 allogeneic, 22 ...
Çiğdem Erol, Zeynep Ece Kuloğlu, Bircan Kayaaslan, Gülen Esken, Adalet Altunsoy, Tayfun Barlas, Güle Çınar, İmran Hasanoğlu, Ebru Oruç, Said İncir, Alpay Azap, Gülten Korkmaz, Dilara Turan Gökçe, Onur Elvan Kırımker, Ezgi Coşkun Yenigün, Erkan Ölçücüoğlu, Ebru Ayvazoğlu Soy, Süleyman Çetinkünar, Özlem Kurt Azap, Füsun Can, Mehmet Haberal   +20 more
openaire   +4 more sources

Neutralizing antibodies induced by homologous and heterologous boosters in CoronaVac vaccinees in Chile

, 2022
OBJECTIVES: To determine the impact of a booster dose on the humoral response in individuals inoculated with a complete schedule of any SARS-CoV-2 vaccine, we evaluated the neutralizing antibody (NAb) titers of homologous or heterologous booster doses ...
Aracelly Gaete-Argel, Gaete-Argel, Aracelly, Alejandro Jara, Acevedo, Johanna, Mónica L. Acevedo, Jarpa, Stephan, Fernando Valiente-Echeverría, Stephan Jarpa, Rivas, Solange, Soto-Rifo, Ricardo, Johanna Acevedo, Araos, Rafael, Valiente-Echeverría, Fernando, Jara, Alejandro, Acevedo, Mónica L., Cecilia Gonzalez, Daniela Espinoza, Gonzalez, Cecilia, Solange Rivas, Ricardo Soto-Rifo, Pablo Pizarro, Pizarro, Pablo, Rafael Araos, Espinoza, Daniela   +23 more
core   +1 more source

Adverse Events and Immunization Errors Following a Mass Immunization Campaignwith TAK‐003 in Dourados, Brazil: A Post‐Marketing Safety Surveillance Analysis

Journal of Medical Virology, Volume 97, Issue 11, November 2025.
ABSTRACT This descriptive observational study based on post‐marketing surveillance data evaluates adverse events following immunization (AEFI) associated with the TAK‐003 (Qdenga®) vaccine. Conducted in Dourados, Brazil, between January and November 2024, the study aimed to assess the frequency, nature, and severity of AEFI to inform public health ...
Luana Clemm Kuhnen Anschau, Amanda Maria Miguel Bortuluzi, Andrea da Silva Santos, Devanildo de Souza Santos, Sandra de Souza Rodrigues, Indianara Ramires Machado, Renato de Ávila Kfouri, Marco Aurélio Palazzi Sáfadi, Roberto Dias de Oliveira, Julio Croda   +9 more
wiley   +1 more source