[ANALYSIS] Clouds carry drug-resistant bacteria across distances: study
Atmospheric monitoring could help pinpoint the sources of drug-resistant bacteria found in clouds, researchers said.MONTREAL - For a team of Canadian and French researchers, dark clouds on the horizon are potentially ominous not because they signal an approaching storm -- but because they were found in a recent study to carry drug-resistant bacteria over long distances.
"We found that they are carried by the wind into the atmosphere and can travel long distances -- around the world -- at high altitudes in clouds," he told AFP.The researchers from Laval University in Quebec City and Clermont Auvergne University in central France searched for antibiotic-resistant genes from bacteria found in cloud samples.
An analysis of the retrieved mist revealed that they contained between 330 to more than 30,000 bacteria per millilitre of cloud water, for an average of around 8,000 bacteria per millilitre.Drug resistance occurs when bacteria are exposed to antibiotics and develop an immunity to them over generations.
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