Several species of bacteria resistant to antibiotics, it was found in the water system of the Indian capital New Delhi, reports the BBC. Microorganisms were identified a group of British researchers led by Timothy Walsh (Timothy Walsh), School of Medicine, Cardiff University (Cardiff University's School of Medicine). Report on their work published in the journal The Lancet Infectious Diseases.
To investigate Walsh and his colleagues collected 50 samples of tap water and 171 water sample from the street gutters and tanks. As a control experiment, the researchers used a sample sewer water collected in one area of Cardiff.
Researchers intended to detect water NDM-1 gene encoding a bacterial enzyme - metallo-beta-lactamase. This enzyme breaks antibiotics from the group of penicillins, cephalosporins, carbapenems and monobactams, and also provides resistance to a range of other antimicrobial agents.
According to a study NDM-1 genes have been detected in the sample 51 (30 percent) of water street, as well as two samples (4 percent) of water from the water Delhi. In water from Cardiff scientists have been unable to identify these genes. Grow colonies of bacteria from 14 samples of Indian water, scientists discovered 11 species of microorganisms in which the gene NDM-1 was first detected. In particular, the bacteria species and Shigella boydii Vibrio cholerae, causing, respectively, dysentery and cholera.
Walsh noted that the problem of so-called "supermikrobov" went international. According to him, the need for similar studies in other cities of India as well as Pakistan and Bangladesh to establish the prevalence of antibiotic-resistant bacteria. In 2010, the microbes that carry the gene NDM-1, have been identified in the British undergoing various operations in Indian hospitals and patients in the U.S., Canada, Australia, the Netherlands and Sweden.
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