Results 81 to 90 of about 12,288 (265)

Cellular Immune Response Induced by mRNA Vaccines Against SARS‐CoV‐2

Immunity, Inflammation and Disease, Volume 14, Issue 3, March 2026.
SARS‐CoV‐2 vaccine induces cellular immune response. T‐cells play a protective role for COVID‐19. ABSTRACT The disease caused by SARS‐CoV‐2 is known as COVID‐19, and it can range from mild symptoms to severe clinical manifestations, including respiratory failure, pneumonia, and organ failure. Since its emergence in 2019, more than 7 million deaths have
Valentina Tovar, Isaura Pilar Sánchez, María Teresa Rugeles, Natalia Andrea Taborda, Juan C. Hernandez   +4 more
wiley   +1 more source

The 6-Month Antibody Durability of Heterologous Convidecia Plus CoronaVac and Homologous CoronaVac Immunizations in People Aged 18–59 Years and over 60 Years Based on Two Randomized Controlled Trials in China

Vaccines, 2023
Previous reports have shown that heterologous boosting with the AD5-vectored COVID-19 vaccine Convidecia based on a primary series of two doses of inactivated vaccine induces increasing immune responses.
Hudachuan Jiang, Pengfei Jin, Xiling Guo, Jiahong Zhu, Xue Wang, Peng Wan, Jingxuan Wan, Jingxian Liu, Jingxin Li, Fengcai Zhu   +9 more
doaj   +1 more source

Self-reported reactogenicity of CoronaVac (Sinovac) compared with Comirnaty (Pfizer-BioNTech): A prospective cohort study with intensive monitoring [PDF]

, 2022
OBJECTIVE: CoronaVac (Sinovac) Covid-19 vaccine has recently been approved for emergency use by the World Health Organization. However, data on its reactogenicity in real-world settings is scant. This study aimed to compare self-reported post-vaccination
Chan, EWW, Chan, EWY, Chen, K, Cheung, TYY, Chui, CSL, Cowling, BJ, Fan, M, Huang, L, Lai, FTT, Lam, EFS, Lau, LKW, Leung, JCN, Leung, MTY, Li, X, Lum, DH, Peng, K, Wan, EYF, Wong, CKH, Wong, ICK   +18 more
core  

Waning immunity to inactive SARS-CoV-2 vaccine in healthcare workers: Booster required [PDF]

, 2023
Aims Despite high vaccination rates, increasing case numbers continue to be reported with the identification of new variants of concern, and the issue of durability of the vaccine-induced immune response remains hot topic.
Aydoğan, Okan, Balkan, İlker İnanç, Beytur, Ayşe Nur, Budak, Beyhan, Can, Günay, Dinç, Harika Öykü, Ergin, Sevgi, Karaali, Rıdvan, Keskin, Elif, Kocazeybek, Bekir, Mete, Bilgül, Saltoğlu, Neşe, Çağlar, Bilge, Özbey, Doğukan   +13 more
core   +1 more source

Complement Hyperactivation Is Mediated by Alternative and Lectin Pathways During Early Phase of Severe Vaccination‐Omicron BA.5 Infection

Journal of Medical Virology, Volume 98, Issue 3, March 2026.
ABSTRACT Complement temporal activation kinetics, activation pathways, and their relationship with thromboinflammation and antibody responses in severe vaccination‐COVID‐19 remains unclear. Based on a vaccinated‐infected cohort, we analyzed complement immune responses across mild to critical COVID‐19 cases by a dynamic model.
Jinpeng Cao, Gang Yang, Tingting Cui, Jian Qin, Deyi Huang, Shiqin Jin, Xiaoyun Yang, Mingzhu Huang, Xiaoling Su, Siyi Liu, Yingjiao Xia, Shidong Deng, Chengna Luo, Zhuxiang Zhao, Yunhui Zhang, Nanshan Zhong, Zhongfang Wang   +16 more
wiley   +1 more source

Booster Vaccination with BNT162b2 Improves Cellular and Humoral Immune Response in the Pediatric Population Immunized with CoronaVac

Vaccines
The SARS-CoV-2 Omicron variant and its sublineages continue to cause COVID-19-associated pediatric hospitalizations, severe disease, and death globally. BNT162b2 and CoronaVac are the main vaccines used in Chile.
Diego A. Díaz-Dinamarca, Simone Cárdenas-Cáceres, Nicolás A. Muena, Pablo Díaz, Gisselle Barra, Rodrigo Puentes, Daniel F. Escobar, Michal Díaz-Samirin, Natalia T. Santis-Alay, Cecilia Canales, Janepsy Díaz, Heriberto E. García-Escorza, Alba Grifoni, Alessandro Sette, Nicole D. Tischler, Abel E. Vasquez   +15 more
doaj   +1 more source

Clinical characteristics of patients hospitalized for COVID-19 vaccinated with at least two doses in a tertiary care hospital in Turkey [PDF]

, 2022
Background. We aimed to examine the characteristics of Turkish patients hospitalized with COVID-19 despite being fully vaccinated. Method. A retrospective, single-center study was conducted in fully vaccinated patients with inactivated whole virion ...
Civan-Yüksel, Recep, Eryilmaz-Eren , Esma, Kılınç Toker, Ayşin, Toker , İbrahim, Turunç-Özdemir, Ayşe, Çelik , İlhami   +5 more
core   +2 more sources

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

Boosting immunity after CoronaVac [PDF]

The Lancet, 2022
Sester, Martina, Becker, Sören L
openaire   +2 more sources

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