LifeYellow fever outbreak is killing off rare monkeys in Brazil Up to 90 per cent of brown howler monkeys in one area may have died already and fear of them spreading yellow fever to humans has led to reprisal attacks News
HumansGender equality is boosted by better infection control The gender gap has been narrowing in the UK and US since the 1970s, and this might be thanks to the lower risk of catching disease in childhood News