New Delhi, Oct. 21 -- Candida auris is a dangerous fungal infection that emerged in 2009 in Japan and has now spread round the world, especially in hospitals. It is a superbug: a germ that has evolved defences against medicines and cannot be treated. These include antifungals such as fluconazole (Diflucan), the antifungal drug of choice in many countries, and recently introduced antifungals known as echinocandins. First identified in Japan in 2009 after isolation from a patient's ear, it is responsible for the rapidly increasing, hospital-acquired, invasive infections worldwide. It is a threat to intensive care units, because it can survive normal decontaminants such as chlorhexidine and bleach. Some hospitals have had to rip out floor an...