Browsing by Author "Twele, Loreto"

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    Different Safety Pattern of an Inactivated SARS-CoV-2 Vaccine (CoronaVac®) According to Age Group in a Pediatric Population from 3 to 17 Years Old, in an Open-Label Study in Chile
    (2023) Le Corre, Nicole; Abarca Villaseca, Katia; Astudillo, Patricio André; Potin Santander, Marcela Patricia; López, Sofía; Goldsack, Macarena; Valenzuela Guerrero, Vania; Schilling Redlich, Andrea; Gaete, Victoria; Rubio, Lilian; Calvo, Mario; Twele, Loreto; González, Marcela; Fuentes, Daniela; Gutiérrez Muñoz, Valentina José; Reyes Zaldivar, Felipe Tomás; Tapia, Lorena I.; Villena, Rodolfo; Retamal Díaz, Angello; Cárdenas, Antonio; Alarcón Bustamante, Eduardo; Xin, Qianqian; González Aramundiz, José Vicente; Álvarez Figueroa, María Javiera; González Muñoz, Pablo Alberto; Bueno Ramírez, Susan; Soto Ramírez, Jorge Andrés; Perret Pérez, Cecilia; Meng, Xing; Kalergis Parra, Alexis Mikes
    During the COVID-19 pandemic, the importance of vaccinating children against SARS-CoV-2 was rapidly established. This study describes the safety of CoronaVac® in children and adolescents between 3- and 17-years-old in a multicenter study in Chile with two vaccine doses in a 4-week interval. For all participants, immediate adverse events (AEs), serious AEs (SAEs), and AEs of special interest (AESIs) were registered throughout the study. In the safety subgroup, AEs were recorded 28 days after each dose. COVID-19 surveillance was performed throughout the study. A total of 1139 individuals received the first and 1102 the second dose of CoronaVac®; 835 were in the safety subgroup. The first dose showed the highest number of AEs: up to 22.2% of participants reported any local and 17.1% systemic AE. AEs were more frequent in adolescents after the first dose, were transient, and mainly mild. Pain at the inoculation site was the most frequent AE for all ages. Fever was the most frequent systemic AE for 3–5 years old and headache in 6–17 years old. No SAEs or AESIs related to vaccination occurred. Most of the COVID-19 cases were mild and managed as outpatients. CoronaVac® was safe and well tolerated in children and adolescents, with different safety patterns according to age.
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    SARS-CoV-2 infection in people living with HIV. Topics on the global panorama and in Chile
    (2022) Silva, Macarena; Blamey, Rodrigo; Ceballos, M. Elena; Araya, Ximena; Bastias, Carla; Twele, Loreto; Munoz, Rodrigo; Sciaraffia, Alicia; Pinera, Cecilia
    The COVID-19 disease is caused by the SARS-CoV-2 virus and was declared a pandemic by the WHO on March 11, 2020. To date, more than 500 million people have been infected and it has caused over 6 million deaths worldwide. People that belong to the most vulnerable risk groups, such as those at the extremes of life, patients with chronic comorbidities and those with severe immunosuppression, are especia-lly susceptible to developing a severe form of COVID-19 infection and death. Subjects living with HIV, especially those in precarious immunological conditions or those in whom antiretroviral therapy is yet to be started, may be at risk of developing complications related to COVID-19, as observed with other infectious diseases. This review aims to determine the magnitude of the impact of the SARS-CoV-2 virus on people living with HIV in Chile.