The Perfect Enemy | Author: Julio Marchi | Page 280
September 15, 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.

Effectiveness of Monovalent mRNA Vaccines Against COVID-19–Associated Hospitalization Among Immunocompetent Adults During BA.1/BA.2 and BA.4/BA.5 Predominant Periods of SARS-CoV-2 Omicron Variant in the United States — IVY Network, 18 Stat