[ad_1]
A European study has highlighted the problems faced by a number of European countries with antibiotic-resistant bacteria. It has also shown the ability of treatment plants to reduce the risk of contamination by these bacteria when discovering strange and remarkable.
According to a study conducted by researchers under the supervision of Katarina Berninen of the University of Helsinki and David Kniess of the University of Dresden for Applied Sciences, modern wastewater treatment plants can reduce the spread of intractable bacteria on antibiotics, according to a study published in the latest issue of the journal Science Advances.
Antibiotic resistance occurs when the bacteria is able to tolerate treatment or the antibiotic is killed and eliminated in the past.
Antibiotic resistance is a serious disease that is currently developing, and even some pessimists believe that it could lead to the emergence of ferocious bacteria that can kill thousands or millions of people, just like infectious diseases before the discovery of antibiotics.
Bacteria are resistant to antibiotics in a variety of ways, including the secretion of disrupting enzymes, including penicillin G-resistant bacteria, which produce beta-lactamase, which disrupts the antibiotic, and mechanisms to reduce the antibiotic. entry of the drug into the cells.
intractable
Antibiotic bacteria are a major problem in the medical world, as many of these disease-causing bacteria no longer respond to currently available drugs.
Antibiotic resistant bacteria and their antimicrobial antagonists are prevalent throughout the world in humans, food, animals and plants, as well as in the environment (soil, water and air). The researchers said scientists knew so little about how antibiotic-resistant genes are evolving in the environment.
The international team of researchers studied 12 sewage treatment plants in seven European countries – Cyprus, Spain, Portugal, Ireland, Norway and Finland – as well as. in Germany. For several days, the researchers analyzed incoming and outgoing waters for 229 common genes for resistance genes. This is the first time that this step is coordinated in a number of European countries and by the same scientific means, he said.
The researchers found, in principle, the desired destination, in all stations. But it was found that there were differences in the spread of these genes between the north and the south, where they found that water pollution by these bacteria was more evident in the south of Europe and Ireland in Germany and northern Europe, which is consistent with the fact that the amount of antibiotics described by doctors in southern Europe more clearly than in Northern Europe. In principle, the resistance genes found by the researchers were resistant bacteria that are a problem for hospital doctors.
Researchers reported, for example, E. coli bacteria, Pneumococcus bacteria, bronchial spongiform bacterium and Staphylococcus aureus.
Treatment
The analysis also showed that sewage treatment plants reduce bacterial contamination. "Eleven of the 12 stations covered by the study have reduced the problem of water pollution by persistent bacteria, indicating that modern stations are working well on this point," said Marco Vertea. A senior researcher from the University of Helsinki, in a statement on the university.
He pointed out that only one station – in Portugal – is where the percentage of bacterial contamination in treated water is significantly higher than in untreated water. However, all sewage treatment plants reduce the resistance genes in the environment.
The volume of treated water pollution in Southern Europe and Ireland was higher than in the three Northern European countries. This is not only because of the number of times antibiotics are prescribed to patients in these countries, but also the amount of precipitation, the description of antibiotics in the agricultural sector, the size of treatment stations and the temperature, in particular. Many bacteria living in the digestive tract of humans have ideal conditions when the temperature of the environment in which they live is 30 degrees Celsius. "So it's not surprising that these bacteria remain better alive in a warmer environment," the researchers said.
[ad_2]
Source link
