The Perfect Enemy | Author: Julio Marchi | Page 108
August 30, 2025

Julio Marchi

Technology Scientist, Executive, and Entrepreneur. Specialized in Internet Products Development, Digital Security, and IT Coaching. System Engineer by degree, Musician and Writer by passion. Journalist and Magazines Publisher in a previous life (getting back to it now). Currently hosting the "Julio Marchi Speaks Out Show" on YouTube.

Risk factors affecting COVID-19 vaccine effectiveness identified from 290 cross-country observational studies until February 2022: a meta-analysis and meta-regression

Hasan T, Beardsley J, Marais BJ, Nguyen TA, Fox GJ. The implementation of mass-vaccination against SARS-CoV-2: a systematic review of...