Drugs already developed to treat bacterial infection can be re-purposed to cure the mosquito-borne viral disease dengue, Australian researchers have found.

The scientists from University of Queensland identified similarities in how the body reacted to dengue virus and bacterial infections.

As drugs for bacterial infections are already available, the researchers believe that clinical trials for a dengue fever treatment could start within a year.

“We have discovered that the dengue virus NS1 protein acts as a toxin in the body, in a similar manner to the way bacterial cell wall products lead to septic shock in bacterial infections,” said Paul Young, professor at University of Queensland.

“For the past 20 to 30 years, researchers and pharmaceutical companies have been developing drug candidates to inhibit the body’s damaging responses to these bacterial infections. So drugs are already available that have gone through phase three clinical trials,” Young said.

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Dengue virus is estimated to infect up to 400 million people globally each year. The World Health Organisation ranks it as the most important mosquito-borne viral disease in the world.

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