The Brazilian government has announced that it expects to import the technology to produce a vaccine against dengue fever within four years, China's Xinhua news agency reports. Reinaldo Guimaraes, the Health Ministry's Secretary of Science, Technology and Energy Supplies, told reporters that the Sao Paulo-based Butantan Institute has been instructed by the government to negotiate a licensing deal with US researchers.
Mr Guimaraes admitted that the unspecified US R&D project is not complete, although he said that results of in vivo and human tests have been described as "promising."
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