Tonic water and other tropical posts mixed the powder with soda and sugar, and tonic water was created. The first commercial tonic water was produced in 1858. The mixed drink gin and tonic also originated in British colonial India, when the British mixed their medicinal quinine tonic with gin. Since 2010, at least four tonic syrups have been available in the US. Consumers add carbonated water to the syrup to make tonic water, allowing drinkers to adjust the flavor intensity. Medicinal tonic water originally contained only carbonated water and a large amount of quinine. However, most tonic water today contains less quinine
Effects of parasitic worms on the immune system study, Dr. Hartgers "et al." drew a "cautious conclusion" that helminths make humans more susceptible to contracting malaria and experiencing some of its lighter symptoms, while actually protecting them from the worst symptoms. Hartgers reasons that a Th2-skewed immune system resulting from helminth infection would lower the immune system's ability to counter an initial malarial infection. However, it would also prevent a hyperimmune response resulting in severe inflammation, reducing morbidity and pathology. Effects of parasitic worms on the immune system The effects of parasitic worms, or helminths, on the immune system is a recently emerging topic of study among immunologists