Health
Viruses may have evolved to hit men hard but go easy on women
Many infections give men worse symptoms. Mathematical models suggest this could be because women can pass infections on to others in several extra ways
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Many infections give men worse symptoms. Mathematical models suggest this could be because women can pass infections on to others in several extra ways
One dose protects mice from Zika but may put people at greater risk of dengue. A more targeted approach may protect against both diseases