Viruses are smart and adaptable, developing and passing along mutations that give them resistance to antiviral pharmaceuticals. Global crises such as Covid-19, SARS, and dengue fever spread more quickly than we can develop medicines to fight them, and every season there are new flu strains that challenge the effectiveness of vaccines.

Build your immunity and protect yourself with broad-spectrum herbal treatments. Stephen Harrod Buhner profiles the plants that have proven most effective in fighting viral infections and provides in-depth instructions for preparing and using formulations to address the most common infections and to strengthen your immunity, safely and naturally.