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Holy Smoke
Is going to church dangerous for your health? The atmosphere in churches are sometimes laden with smoke from candles and incense. This smoke however can contain particulate material in concentrations...
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Eradicating Malaria
Since 2000, malaria deaths around the world have fallen by nearly half. The steepest drop has come in sub-Saharan Africa, where 90% of fatalities occur. Malaria still kills around 450,000 people each...
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Pollution of the River Flint, Michigan
In the summer of 2014, LeeAnne Walters noticed that her son would get a rash every time he got into the swimming pool at their home in Flint, Michigan. By December that year, she had stopped letting...
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Zika Fever
Zika, a mosquito-borne virus that arrived in Brazil in May 2015, has since spread into 17 other countries in the Americas. Until October, Zika was not thought much of a threat: only a fifth of infected...
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