Abstract
Coronavirus disease 2019 (COVID-19) is a unique disease caused by the
novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that has caused
mortalities throughout the world. This unique coronavirus is extremely contagious and
has no effective therapy or particular medications. It caused increased worldwide
mortality and lockdown. The Food and Drug Administration (FDA) has permitted the
use of COVID-19 vaccination in this emergency situation. However, there are concerns
regarding the new COVID-19 vaccine's safety, effectiveness, and long-term protection.
A deteriorated immune system is an eminent risk factor for viral influenza infections.
Many individuals all around the world are interested in herbal nutraceuticals to
preserve their health and strengthen their immune systems. The use of dietary
supplements, herbal medications, and foods with protective benefits, such as functional
foods, improves the immune system's ability to avoid and control pathogenic viral
infections.