On April 25, according to the “Lookout” news weekly report, the investigation found that the concentration of antibiotics in the Yangtze River basin was high, and the water ecosystem was damaged. What is more worrying is that relevant surveys show that antibiotics have been detected in the urine of about 40% of pregnant women in the Yangtze River Delta, and veterinary antibiotics have been detected in the urine of nearly 80% of children. Some antibiotics have been banned in the clinic and may be serious. Damage the body’s immunity.
You know, this ratio has increased significantly compared to 5 years ago!
According to CCTV News reports, in 2015, a study conducted by the School of Public Health of Fudan University conducted a urine test on more than 1,000 school children aged 8 to 11 in Jiangsu, Zhejiang and Shanghai. The results showed that nearly 60% of children were detected Urine contains antibiotics. Moreover, it was found that chlortetracycline, enrofloxacin, tylosin and other three antibiotics, which are generally limited to the use of livestock and poultry, were detected in children.
Two major sources of antibiotics in water:
Breeding materials + medical discharge
According to the survey of “Lookout”, antibiotics in water mainly come from hospital and pharmaceutical factory wastewater, aquatic and livestock breeding wastewater, and landfills. Most antibiotics cannot be effectively removed under the existing process, causing rivers and lakes to become antibiotics and resistant gene bank.
Researchers from the Yangtze River Protection and Green Development Institute surveyed in the middle and lower reaches of the Yangtze River and found that in the process of raising pigs, broilers, aquatic products, etc., due to the high density of breeding, many farmers are used to adding various kinds of feed to reduce the incidence of infection Antibiotics. For example, in pig feed, colistin sulfate and chlortetracycline are commonly used antibiotics, and one ton of feed can add one pound of antibiotic drugs. Some fish farmers raise frankly: “Fish and crab feeds must be mixed with antibiotics, otherwise a large piece will definitely lose money.”
The wastewater from pharmaceutical factories and hospitals contains high concentrations of antibiotics, causing serious pollution in the river basin. Researchers have found that the sewage outlets of large pharmaceutical manufacturers are distributed 5 kilometers upstream of some drinking water sources. For example, there are sewage outlets of three pharmaceutical companies near a water source in a city in the Yangtze River Delta, and some six or seven pharmaceutical factories at the intersection of some tributaries of the Yangtze River. The wastewater contains high-concentration antibiotics.
The latest research by academician Zhu Yongguan of the Chinese Academy of Sciences shows that most of the antibiotics ingested by animals enter the soil and water through animal feces and urine in the form of original drugs or metabolites, and cause poison to the entire ecological environment through the food chain, affecting plants, soil microorganisms and The normal life activities and functions of animals.
Where do the animal antibiotics in the human body come from?
- Antibiotic chicken in fast food
Ying Guangguo, a researcher at the Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, told Interface News that chlortetracycline, which is widely added in the feed, can significantly increase the growth rate of broilers, prevent swine diarrhea, and significantly improve the reproductive capacity of sows.
However, if there are residues of veterinary drugs or antibiotics in livestock and poultry meat, the processed products produced may contain antibiotics, and the ultimate recipient is humans, which will increase the use of antibiotics in humans, which will cause drug resistance and drug resistance problems. ①
The fast food industry is a big consumer of chicken. If you use chicken with antibiotics at the source, if you eat it for a long time, the consequences can be imagined.
- Eggs with antibiotic residues
In November 2017, the Food and Drug Administration in Shanghai, Shanxi, Shandong and other places tested the banned antibiotic “flufenicol” in different batches of eggs.
The source of florfenicol detected in eggs may be the addition of chicken feed in the enterprise or the treatment of poultry diseases. The residues of florfenicol used in the company accumulate in the poultry and are then transferred to the egg. ②
- Unqualified aquatic products
The State Food and Drug Administration held a press conference to announce the status of the food safety supervision and sampling in 2017. Among the unqualified foods that were sampled, aquatic products became the “severe disaster area” of food safety, and more than 90% of the unqualified aquatic products exceeded the standard.
More than 90% of unqualified aquatic products are detected as drugs that are not allowed to be used or detected by the state. Experts say that many small feed factories often process feed illegally, and the types of antibiotics used are even greater than the medical effects of medical drugs. ③
- Antibiotic drugs
China is a big country in the application of antibiotics. According to a surging news report, the research group of Ying Guangguo of the Guangzhou Institute of Geochemistry, Chinese Academy of Sciences found that in 2013, China used 162,000 tons of antibiotics a year, accounting for about half of the world’s consumption, of which 52% were for veterinary use and 48% were for human use. .
The consequences of antibiotic contamination are serious!
- Childhood obesity and precocious puberty
A survey of thousands of children between 8 and 11 years old and 516 pregnant women by the School of Public Health of Fudan University showed that 21 kinds of human, veterinary or human and veterinary antibiotics were detected in urine samples of children, and 79.6% of school-age children had urine One or several antibiotics were detected in the clinic, some of which have been clinically banned. Exposure to veterinary antibiotics is associated with childhood obesity and precocious puberty. In addition, there are 16 antibiotics detected in the urine of pregnant women in Jiangsu, Zhejiang and Shanghai, and the detection rate of one or more antibiotics is 41.6%. Exposure of pregnant women is more common and the risk is greater.
- Undermine human immunity
Professor Chen Qiuwen, director of the Institute of Ecology, Nanjing Institute of Water Sciences and Director of the Ecological Environment Center of the Yangtze River Protection and Green Development Institute, said in an interview with “Looking Out” that antibiotics cannot be completely metabolized after entering the human body and animals through drinking water or edible aquatic products. After long-term ingestion, antibiotics follow the blood circulation throughout multiple organs, resulting in a gradual decrease in immunity.
Experts believe that more than 80% of the body’s immune function is based on the balance of intestinal flora. Abuse of antibiotics destroys probiotics in large quantities, reducing the number of microorganisms in the gastrointestinal tract that are highly sensitive to antibiotics, and the bacteria with poor sensitivity take advantage of the opportunity to multiply and destroy the micro-ecological balance of the intestine, which creates conditions for the invasion and reproduction of bacteria in vitro.
- Increase bacterial resistance
Researcher Ying Guangguo told the Southern Metropolis Daily that antibiotics that enter the human body through diet are very small. They are much less than those used in medical treatment. It is okay to take antibiotic drugs. Trace antibiotic residues do not directly harm the human body. However, the real hazards of antibiotic abuse and environmental antibiotic pollution are: increase bacterial resistance!
Drugs that worked well in the past have gradually decreased in efficacy, which is the manifestation of drug resistance. If it is allowed to continue to develop, human beings will probably have no medicine available!
What should we do to save ourselves?
- First, control your mouth and do not eat antibiotics indiscriminately.
Wang Aixia, chief physician of the Department of Infection, Peking Union Medical College Hospital, proposed as early as January 15, 2009, that the use of antibiotics also has certain principles: ④
① Diseases that can be cured with other drugs, do not use antibiotics;
② Use one antibiotic to cure diseases, do not use multiple antibiotics at the same time;
③ Diseases that can be cured with narrow-spectrum antibiotics, do not use broad-spectrum antibiotics;
④ The use of broad-spectrum antibiotics should generally not exceed 7 days.
- Secondly, don’t give medicine to livestock and poultry anymore, harming others!
We call on our country to introduce relevant policies as soon as possible, prohibiting farms from using antibiotics preventively on livestock. The European Union banned the use of antibiotics on animals for preventive purposes after 2004.