Police killings of unarmed black Americans have adverse effects on the mental health of black American adults in the general population, according to a new study. With police killings of unarmed black Americans widely perceived to be a symptom of structural racism, the findings highlight the role of structural racism as a driver of population health disparities, and support recent calls to treat police killings as a public health issue. The study was published in The Lancet .

It’s official

Paraguay is malaria-free

The World Health Organization has certified Paraguay as having eliminated malaria, the first country in the Americas to be granted this status since Cuba in 1973.

“Success stories like Paraguay’s show what is possible,” said Dr Tedros Adhanom Ghebreyesus, the WHO Director-General.

Paraguay registered its last case of Plasmodium falciparum malaria in 1995, and P. vivax malaria in 2011, the WHO said.

Agri practices

Farming that harms health

Water pollution from unsustainable agricultural practices poses a serious risk to human health and the planet’s ecosystems, cautions a new report. Worldwide, the most common chemical contaminant found in groundwater aquifers is nitrate from farming, according to “More People, More Food, Worse Water? A Global Review of Water Pollution from Agriculture”, launched by the Food and Agriculture Organisation and the International Water Management Institute at a conference in Tajikistan.

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