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Studies are retrieved from PubMed using title\u2010based searches for COVID\u201019, SARS\u2010CoV\u20102, and related therapies from 2020 to 2025, focusing on randomized controlled trials, systematic reviews, and clinical guidelines. This review explores treatments, nutrients, and adjuvant therapies that support the immune system in fighting COVID\u201019. It highlights the role of antiviral medications such as remdesivir, nirmatrelvir\/ritonavir, and molnupiravir in reducing mortality and hospitalizations. Additionally, adjunctive therapies like corticosteroids, interleukin\u20106 (IL\u20106) inhibitors, Janus kinase (JAK) inhibitors, and N\u2010acetylcysteine (NAC) are discussed for their potential to modulate inflammation. Nutritional support, including omega\u20103 fatty acids, vitamins D, C, and A, zinc, selenium, and probiotics, enhances immune function. Preventive measures, such as hygiene practices, wearing masks, and physical distancing, reduce transmission. 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