Australian university, Sementis working on Zika vaccine

(Reuters) - The University of South Australia said on Tuesday it was working on a vaccine for the Zika virus with Australian biotech Sementis Ltd, a day after the World Health Organization declared the mosquito-borne disease an international public health emergency. Sanofi SA also said on Tuesday it had launched a project to develop a vaccine against the virus. Zika, a close cousin of dengue and chikungunya, causes mild fever and rash.