EDITORIAL

1. New Year's greeting and overview of World Journal of Virology in 2021

REVIEW

1. Bottom-up analysis of emergent properties of N-acetylcysteine as an adjuvant therapy for COVID-19

MINIREVIEWS

1. Are nucleotide inhibitors,already used for treating hepatitis C virus infection,a potential option for the treatment of COVID-19 compared with standard of care? A literature review
2. Trends in the management of infectious disease under SARS-CoV-2 era:From pathophysioIogicaI comparison of COVID-19 and infIuenza

META-ANALYSIS

1. Epidemiological characterization and geographic distribution of human immunodeficiency virus/acquired immunodeficiency syndrome infection in North African countries