Can a immunity Boosting Kadha help you from not getting affected by covid19?

      Recently a immunity boosting kadha recipe was shared by a covid 19 survivor went viral, with increasing corona virus there has been a rise in consumption of ayurvedic & herbal remedies in india. The use of home treatment  was also pushed by our prime minister Narendra modi in his various addresses to nation. Does this really help? These are the questions arising in common people's life, which somewhere is proving that it can help when a covid survivor shares his experience & told the benefits of this kadha. He also shared the ingredients and the recipe of this kadha in which he mentioned, for making this kadha you need 5-6 Tulsi leaves, 1 black or 2 green cardamom, 1/2  cup sliced raw turmeric, 1 tbsp cloves, 1 tbsp black pepper corns, 1 stick cinnamon, 5-6 tbsp sliced ginger, & 1 tbsp manuka. Wash, peel & coarsely pound the raw turmeric & ginger in a mortar & pestle then boil it in 4 cups of water until the colour turns yellow and you star getting a whiff of ginger, this should take 5-6 mins on medium heat and then add rest of the ingredients and boil it for 6-7 mins. "This will increase your immune system" & will protect you from all kind of virus He added. It recently suggested that consumption of kadha as a protective measure against coronavirus is very beneficial, but how exactly does it protect us? Kadha is a connection made using wonderful herbs and spices which acts to strengthen the immune system and thus protect us against many other infections including corona virus. There are many kadha's and home made remedies which people are trying in this increasing pandemic, but it is also important that apart from all these home remedies people should maintain basic hygiene, social distancing & safety measures around themselves to protect  them and their loved ones in this massive corona virus pandemic