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Key Points

A portable DNA sequencing device has proven effective in detecting antibiotic-resistant E. coli hotspots in Indonesian chicken slaughterhouses. Researchers found drug-resistant bacteria spreading from wastewater into nearby rivers, with higher contamination downstream. The handheld tool could revolutionize global antimicrobial resistance tracking in animal farming and wet markets. Experts warn unchecked AMR could cause 8 million annual deaths by 2050 without intervention.

Key Points: Portable DNA Device Detects Antibiotic Resistance in Slaughterhouses

  • Handheld DNA device detects resistant E. coli in slaughterhouse waste
  • Downstream rivers show higher resistance than upstream
  • Tool aids cost-effective AMR surveillance in animals and environment
  • Method adaptable for tracking bird flu and other pathogens
2 min read

Portable DNA sequencing device key to hunt down drug-resistant hotspots

Study shows handheld DNA sequencer identifies drug-resistant E. coli hotspots in slaughterhouse wastewater, aiding global AMR surveillance.

"In certain settings, diarrhoea isn’t just uncomfortable — it’s life-threatening. — Lee Voth-Gaeddert, ASU Biodesign Center"

New Delhi, June 28

A portable DNA sequencing device may be a key genomic surveillance tool for detecting hotspots of antibiotic resistance in animals, and the environment, according to a new study.

In the pilot project, researchers from the Food and Agriculture Organization of the UN, Indonesia’s Ministry of Agriculture, and Arizona State University (ASU) in the US tested the handheld DNA sequencing device to check antibiotic resistance across six chicken slaughterhouses.

The global team collected samples from both wastewater and surrounding rivers in Indonesia’s Greater Jakarta area.

The study found signs that drug-resistant E. coli bacteria -- a key indicator of antibiotic resistance -- from slaughterhouse wastewater may be reaching nearby rivers.

In many cases, downstream sites had higher levels of resistant E. coli than upstream, pointing to a possible route for resistance to spread from animal waste into the environment.

The researchers found that portable DNA sequencing can strengthen national surveillance efforts by making it easier to detect antibiotic resistance hotspots.

This will pave the way for more targeted, cost-effective solutions to reduce the spread of resistant E. coli strains, which can cause a range of illnesses, including diarrhoea, especially in children, older adults, and immunocompromised individuals, the researchers said.

“In certain settings, diarrhoea isn’t just uncomfortable -- it’s life-threatening,” said Lee Voth-Gaeddert, a researcher with the ASU Biodesign Center for Health Through Microbiomes.

Antimicrobial resistance (AMR) is a critical global health issue, posing significant risks to human and animal health.

In 2021, AMR was associated with 4.71 million deaths, including 1.14 million directly attributable to AMR. By 2050, AMR is projected to cause 8.22 million deaths annually, with 1.91 million directly attributable.

Fast, affordable, and locally accessible tools like the portable DNA sequencing device may significantly advance efforts to track and control a broad range of microbial threats.

The mobile sequencing approach could also be expanded to farms and wet markets, or adapted to track other pathogens such as bird flu, noted the team in the research appearing in the journal Antibiotics.

- IANS

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Reader Comments

R
Rohit P
Good research but will it be affordable for developing countries? Our municipal corporations barely test water quality properly. First fix basic infrastructure!
A
Arjun K
As a doctor, I see antibiotic-resistant infections daily. This device could revolutionize public health if implemented at district hospitals. Kudos to the researchers!
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Sarah B
Interesting study but the article doesn't mention how much the device costs. Without making it accessible to local communities, this remains just lab research.
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Vikram M
Our street food vendors use the same water for washing utensils! Government should make this mandatory testing at all meat markets. Public health is more important than profits.
K
Kavya N
Why only focus on slaughterhouses? Our hospitals are the biggest source of antibiotic resistance. Need to implement this in ICUs and operation theaters too.
M
Michael C
The 8 million projected deaths by 2050 is terrifying. We need global cooperation on this - no country can fight antibiotic resistance alone. Good first step though!

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