More than 5.5 million people worldwide are dying prematurely every year as a result of air pollution, according to new research.
Being exposed to "good bacteria" early in life could prevent asthma developing, say Canadian scientists.
More than 5.5 million people worldwide are dying prematurely every year as a result of air pollution, according to new research.
Being exposed to "good bacteria" early in life could prevent asthma developing, say Canadian scientists.
