What are the symptoms of the chikungunya virus and is there a vaccine? 

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Aedes albopictus, one of the species of mosquito that spreads chikungunya

Chikungunya may not be a household name, but this mosquito-borne viral infection has become a significant concern for travellers to some destinations. The disease, whose name derives from the Kimakonde (a language of Southern Tanzania) word meaning ‘that which bends up’ due to the severe joint pain it causes, has spread across the globe in …