Brazil suspends dengue vaccine following two deaths

Brazil said on June 9 it was temporarily suspending use of the world's first single-dose dengue vaccine following two suspicious deaths.

More than half a million people have received doses of the vaccine this year, which was developed publicly in Brazil and approved by health authorities in November.

It is the first single-dose inoculation against the mosquito-borne dengue virus, which can cause high fever, headaches, muscle pain, nausea and rashes and in rare cases is fatal.

Of the 501,044 people vaccinated between January and May, 3,703 -- 0.7 percent -- showed symptoms similar to dengue.