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air pollution

BAD AIR  U.S. pollution levels have come way down since the 1970s, but there’s still enough smog to raise the risk for cardiovascular deaths. Researchers are also drawing new connections between dirty air and metabolic and brain disorders.

chicken farm

COOPED UP  Thanks in large part to antibiotics, chicken production has become heavily industrialized, as detailed in a new book.

a common fungus, Aspergillus fumigatus

FUNGUS AMONG US  Aspergillus fumigatus (shown) is a common fungus found in soil. New immunology research is helping explain why the organism can make immunocompromised people so sick, while going undetected by healthy people.

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