Zika Vaccine Protects Mice, But May Increase Risk Of Dengue, Harvard Medical School Study

If only it were that simple. Just one dose of a newly developed Zika vaccine gives mice complete immunity to the disease. Safety trials in people are planned for October.

But some researchers warn there might be a major drawback – the vaccine might put people at greater risk from another more common virus, dengue. But the good news is that a more precisely targeted vaccine may eventually work for both diseases.

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