Lead can cause a wide range of disorders, including anaemia and hepatic and neurological disorders and food can be a major route of exposure.

铅可引起一系列广泛的疾病，包括贫血和肝病以及神经紊乱，而食品可能是一个重要的接触途径。

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Epidemiological investigations so far have not revealed a common source or route of exposure, and these investigations are now being extended in scope.

流行病学方面的调查目前还没有找到共同的接触源或接触途径，目前正在扩大调查范围。

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Many Native Americans suffered from exposure, disease, and starvation while en route to their destinations, and many died, including 4, 000 of the 15, 000 relocated Cherokee.

很多美洲土著在途中受到疾病和饥饿的折磨并且死去，其中15000名彻罗基族人有4000在途中死去了。

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Authors of that study analyzed dust collected in 16 California homes in 2006 and again in 2011, testing for 49 flame retardant chemicals in household dust (the main route of human exposure to flame retardant chemicals, especially for children).

FORBES: New Studies Find Dangerous Levels Of Toxic Flame Retardants In Household Dust

Ford Hickson, a senior research fellow with the University of Portsmouth's Sigma Research unit, says HIV prevention over the past 20 years has taken a singular route - safe sex, and reducing exposure .

BBC: NEWS | UK | Magazine | 'Morning-after' pills for HIV?

Had Mr Wang been commuting on a busy bike route in Amsterdam, Copenhagen or Berlin, his unprotected exposure to instruments of death namely, any vehicle moving at 20mph or more would be nearly nil.

ECONOMIST: With a very few exceptions, America is no place for cyclists