View clinical trials related to Vaccine Adverse Reaction.
Filter by:In 2021 and following the COVID-19 (corona virus disease 2019) pandemic, different vaccines were initially authorized in Italy and Lebanon. Notably, vaccine side effects were poorly recorded. Thus, the investigator performed a survey study to monitor COVID-19 vaccine side effects among Italian and Lebanese citizens according to gender and age through a web-based questionnaire in Italian and Arabic languages including 21 items by "Google Form", investigating 13 symptoms, and employing social-media platforms
Women's ovarian reserve and fertility were compared before and after 2 doses of vaccination
Background and Objectives: Seizure attack is one of adverse effects of vaccination in epileptic patients, the risk of which after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) inoculation was elucidated in the present study. Methods: A self-controlled case series study was designed to examine the association between vaccination and epileptic seizure. A total of 240 epilepsy patients were included who were vaccinated with inactive SARS-CoV-2 vaccines (Sinovac Life Sciences and Lanzhou Institute of Biological Products) and admitted to outpatient clinics from July 2021 to December 2021. Poisson analysis was performed to estimate the relative incidence rate of epileptic seizure in risk periods (day 1-7, 8-21 and 1-21 after first-dose vaccination) compared to basal level in control period.
The aim of the study is to prospectively evaluate the incidence of myocardial injury after the administration of the fourth dose BNT162b2 mRNA vaccine (Pfizer-BioNTech) against COVID-19.
Covid-19 pandemic is caused by Severe Acute Respiratory Syndrome Corona Virus 2 (SARS-Cov-2) since its outbreak 2019. Protection against Covid-19 can be achieved through global immunization. Various vaccines for SARS-Cov-2 has been registered and approved for administration in humans. It is important to understand the safety and efficacy of vaccines during robust research to develop global immunity against SARS-Cov-2. This study aimed to collect data on post vaccination adverse events in regional population of District Bahawalpur.
COVID-19 vaccines induced malaise have recently been reported in the literature. Our study aims to identify risk factors associated with the onset of COVID-19 vaccines induced malaise and to assess if certain COVID-19 vaccines could be more prone to cause malaise compared to influenza vaccines. To do so we performed a disproportionality analysis adjusted on age class, sex, region and type of reporter in VigiBase®, the WHO pharmacovigilance database, restricted to data from 01/01/2021 to 26/01/2022 to assess the association between all COVID-19 vaccines on the market and malaise. Demographic data were also analyzed.
Background: Scarce information exists in relation to the comparison of seroconversion and adverse events following immunization (AEFI) with different SARS-COV2 vaccines. Our aim was to correlate the magnitude of the antibody response to vaccination with previous clinical conditions and AEFI. Methods: A multicentric comparative study where SARS-CoV-2 spike 1-2 IgG antibodies IgG titers are being measured at baseline, 21-28 days after the first and second dose (when applicable), six months and a year of the following vaccines: BNT162b2 mRNA, mRNA-1273, Gam-COVID-Vac, Coronavac, ChAdOx1-S, Ad5-nCoV and Ad26.COV2. Mixed model and Poisson generalized linear models will be performed for the analyses.
Few patients receiving SARS-CoV-2 vaccines may experience rare but serious adverse events such as transverse myelitis (TM). Today, data about TM are scarce. The objective was to investigate reports of TM adverse events related to SARS-CoV-2 vaccines labelled by FDA and EMA, including ChAdOx1nCov-19 (Oxford-AstraZeneca), BNT162b2 (Pfizer/BioNTech), mRNA-1273 (Moderna) and Ad26.COV2.S (Janssen/Johnson & Johnson) and using the World Health Organization's (WHO) pharmacovigilance database: VigiBase.
Background: ISHLT and AASLD guidelines recommend SARS-CoV2 vaccination in all individuals undergoing lung and liver transplantation, but there are currently scarce data on the safety and efficacy of these vaccines in this population. In Italy, immunocompromised patients have received the indication to be administered mRNA vaccines only. Primary outcome: safety and reactogenicity Secondary outcomes: immunogenicity and prevention of COVID19 Visits and timepoints: - T0: before first dose administration: visit and venous sampling to assess baseline COVID19 serum status - Telephone calls to assess safety and reactogenicity 1 and 2 days after each dose of vaccination - T21 or 28 (based on vaccine; mRNA BNT162b2 and mRNA-1273, respectively): visit, venous sampling to assess immunogenicity - Follow up visits after 60, 120, 180 and 365 from T0: visit and venous sampling to assess immunogenicity
Numerous vaccination studies are conducted to protect against COVID-19 infection, and preclinical and clinical studies are still ongoing worldwide. During this extraordinary period, the necessity to perform COVID-19 vaccine studies and immunization programs together has emerged. Many manufacturing companies have started mass production of vaccines accepting the risk of failure of vaccines during trials. Vaccine Adverse Effects (VAEs) need to be documented quickly. We aimed to determine the VAEs and to compare the frequency of VAEs between groups according to socio-demographic characteristics after the inactivated vaccine (Corona Vac®) was administered to healthcare workers (HCWs) in Turkey. In this study, an online questionnaire was delivered to volunteer healthcare workers across the whole country. Sociodemographic characteristics, medical history, history of COVID-19 infection, and VAEs occurring after the first and second doses of inactivated vaccine were evaluated.