Gin and tonic with Hendrick's Gin is typically garnished with a slice of cucumber. However, garnishes of cucumber are very rare, and garnishes of orange are rarer still. The cocktail was introduced by the army of the British East India Company in India. In India and other tropical regions, malaria was a persistent problem. In the 1700s it was discovered by Scottish doctor George Cleghorn that quinine could be used to prevent and treat the disease. The quinine was drunk in tonic water, however the bitter taste was unpleasant. British officers in India in the early 19th century took to adding a mixture
Malaria vaccine Malaria vaccine Malaria vaccine is a vaccine that is used to prevent malaria. The only approved vaccine as of 2015 is RTS,S. It requires four injections, and has a relatively low efficacy. Due to this low efficacy, WHO does not recommend the use of RTS,S vaccine in babies between 6 and 12 weeks of age. The vaccine is going to be studied further in Africa in 2018. Research continues into recombinant protein and attenuated whole organism vaccines. RTS,S (developed by PATH Malaria Vaccine Initiative (MVI) and GlaxoSmithKline (GSK) with support from the Bill and Melinda Gates Foundation) is the most