to protect our self in this type of flu, there is some herbal remedies to increased our immune system, 1, yansoon is the best to fight flu. boil it and drink once a day...2. ginger, do the same like yansoon, drink it like tea... and put more onion, garlic, and ginger to our everyday food....also if any filipino out thier can find wonderful malunggay is also the best. in this hot weather the best thing to drink is a lemon juice to have natural vitamins c..thnks...