every body talk about boosting immune system…but no body tell you…what is immune system? So first we discuss about…what is immune system…
then discuss the signs of weak immune system in human body…then suggest 3 vitamins that boost immunity….then we discuss about the safty measures that one’s should must be taken…dear this is 3 minutes and 20 seconds vedio…but it take many hours to make this vedio…i summarize the 3 main thing to fight against not only the covid 19 virus (the corona virus)but also all other type of virsus…so please subscribe my channel…like and share the vidio…as it is my right…have a nice day…