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This is not the very first drug proven to help stop the virus. For instance testing showed that anti-malaria pills are commonly prescribed for that purpose. And babies born to HIV-infected mothers are given drugs to keep them healthy. The new study is the initial to test the effectiveness of oral medications to prevent HIV infection prior to exposure. This adds up to a year of notable work inside the HIV field, Truvada cure coming after hopeful signals about an HIV vaccine and a South African trial that showed a vaginal microbicide gel cut womens risk of infection nearly in half.
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