use of antibiotics in cattle feed leads to airborne antibiotic-resistant bacteria – study - where to buy air purifiers

Antibiotic-
It is known that resistant bacterial DNA can be transferred to humans if ingested through water or meat.
The authors of this study tried to identify antibiotics, antibiotics-
In their summary, they wrote that resistance genes and microorganisms related to mammals such as cattle are dispersed into the air through particles from large-scale beef cattle farms.
The paper will be published in April.
Although there is evidence that the use of antibiotics in agriculture is a contributing factor to antibiotics --
In the United States alone, animal husbandry uses nearly 10 million kilograms of antibiotics a year.
"This is the first time we have seen the fact that we can breathe these things," said Phil Smith, one of the authors of the paper and an environmental toxicologist at Texas Tech, who told the Texas Tribune.
Read more: By 2050, super bacteria can kill 10mn every year, more than cancer research.
There are more than 1,000 cattle on the US farm, with a total of 8.
24 million cattle, located in Texas, Oakland, Kansas, Neas and Colorado. The authors point out that a region known as the southern High Plains "has the highest frequency of sandstorms in the United States and the highest density of feed fields ".
"The pen flooring material at the farm consists mainly of urine and stool material, which becomes dry and brittle, thus becoming a source of dust at the farm in the area," the researchers wrote ". “Thus, in semi-
Dry areas where most beef cattle farms in North America are located, livestock transport-
Organic waste is produced mainly through wind.
"From August to December 2012, researchers collected samples of particulate matter from air filters from the area next to ten commercial beef cattle farms in the southern High Plains.
They measured the headwind and downwind air in ten places for half an hour in the afternoon, "when the cattle are most active and [the most]
Particulate matter]is produced.
They then extracted DNA from particles bound to the air filter, in which they detected the presence of nine antibiotic resistance genes.
Scientists also measured whether there was a difference between the headwind and downwind particulate matter, and they found that downwind air contained antibiotics, bacteria and more microbial communities containing antibiotics.
More resistant genes than the headwind air.
They pointed out that three kinds of antibiotics (
7. penicillin, chlorin, and OTC)
Detected in most particulate matter samples with a downwind in the feed field (60 percent)
Although the three most frequently discovered antibiotics, the 100% samples it detected, the downwind feedyards and the 30% samples.
"When we see a more general resistance sequence with downwind than headwind, the 'aha' moment comes, "Greg Mayer, a molecular biologist at Texas Tech and one of the authors of the study, told the Texas Tribune
"It's not only higher on some of them, but it's up 4,000.
It makes me not want to breathe.
The authors point out their concerns in their paper.
"This study clearly shows that antibiotics and bacteria are likely to be transported from beef cattle farms to the environment through wind power.
Therefore, it is reasonable to consider how far microorganisms are transported from these sources, if they are still feasible after air transportation, "the researchers wrote.
"This study is not intended to address these issues directly, but rather to quantify changes in antibiotics, microbial community composition in the air, and to identify antibiotic resistance genes from potential sources.
"Read more: antibiotics" fail 15% "due to super bacteria and" reckless "prescriptions, while many veterinary antibiotics approved for beef cattle production are not suitable for human use, they added: "resistance to multiple antibiotics in the same category or other categories has been recorded, including those intended for human use. ".
The cattle industry objected to the study, saying it misrepresented the risk of superbacteria to human health and that the results were one-sided and uncertain. Dr.
Sam Ives, a veterinarian working with the Texas Cattle Association, told the Texas Tribune that the use of antibiotics in the industry was "sensible ".
"If I really think that the use of these products will endanger anyone, I will not use them," Ives said . ".
"My child works with me at the farm;
My wife works with me.
Are I worried about their safety? No, I'm not worried.
But doctors may be on the side of the researchers.
In 10 years of treating patients at his Lubbock clinic, Dr.
Randall Walcott told the Texas Tribune that he saw bacteria becoming more resistant to antibiotics used to treat infections.
"We know antibiotics.
"Resistance genes are becoming more and more common," Walcott said.
"We use too many antibiotics for the sake of animal health, which reduces the price of food.
Is this a good trade-off? The study is a puzzle that helps determine the problem.