Dr. Al Sears writes: “Arm yourself with anamu: This Amazon-native herb protects against viruses. I discovered it when I was in Peru and use it regularly. And I never travel without it. In one study, anamu increased natural killer cells by 100%. These are the cells that kill disease throughout your body. You can buy the dried leaves online or in health food stores to make tea. You can also take the herb as a capsule. I recommend 500 mg to 1,000 mg per day in divided doses.” Will this be safe and effective?