Top 6 foods to boost your immunity naturally and fight COVID-19/ Coronavirus. Immunity is very important during the coronavirus pandemic. Examples include vitamin c, which citrus fruits are the major component. Citrus fruit benefits are discussed in this video, citrus fruits list is also included and how they will help you fight the coronavirus. Zinc, mushroom, and selenium are well explained in this video and how they help you boost your immunity. This video is very important when it comes to the coronavirus updates.Covid-19 updates will help you boost your immune system and avoid buying food suppliments which are very expensive.