How Clinical Diagnostics Could Help the Global Fight Against Antimicrobial Resistance

This blog was written by Thembinkosi Ramuthivheli (GALVmed), Marie-Elodie Le Guen (Ceva), and Dr. Pierre-Marie Borne (Ceva). Originally published by Farming First.

The misuse of antibiotics in both human and animal health has created an urgent health emergency globally. The resistance of microbes to antibiotics that are constantly used to combat them makes infections harder to treat, creating an antimicrobial resistance (AMR) crisis directly responsible for up to 1.27 million global human deaths as of 2019.

In developing countries, the challenges created by AMR are even more pronounced. Many small-scale producers, desperate to treat their infected livestock, turn to and misuse the most readily available antibiotics, further exacerbating the resistance to antibiotics while increasing losses due to death. As a result of the increasing threat of this phenomenon, AMR has become one of the priorities of the quadripartite agreement and the upcoming 2024 UN High-Level Meeting aimed at ramping up global action.

Essential diagnostic tools have also been initiated in several cities to aid in selecting the right antibiotics for specific livestock infections. Diagnostics have the potential to aid veterinarians in assisting farmers to identify specific disease-causing bacteria, allowing for the rationalised use of antibiotics. However, these tools are not easily accessible to small-scale producers in rural areas, setting the world several steps backwards in efforts to effectively combat the growing threat of AMR​.

Combating antimicrobial resistance with the OneLab Initiative

Small-scale producers generate about one-third of the world’s food supply and bear a significant brunt of the risks of AMR. To address the access gap between them and essential diagnostic tools to tackle microbial infections, Ceva Laprovet’s OneLab Initiative, in partnership with GALVmed, is supporting with a solution that brings clinical diagnostic services closer to small and medium-sized commercial farms. Traditionally, small-scale producers in poultry areas have faced difficulties accessing diagnostic tools, as laboratories that have them are often located far away and primarily in big cities. The long distances, challenges of transportation and delays in results have prevented farmers from getting the timely help they need when their poultry or livestock fall ill​.

OneLab technicians performing tests in one of the diagnostic centers, Senegal, 2023. . Credit: GALVmed/Mediaprod

The OneLab Initiative seeks to bridge this gap by setting up small laboratory units with diagnostic tools at veterinary clinics in poultry areas. Accessing diagnostics in these clinics allows for quick detection of bacterial infections which helps veterinarians recommend the most appropriate treatment for infected flocks, ensuring farmers use the right antibiotic while reducing the risk of antimicrobial resistance in their livestock.

The first tool introduced under the initiative is the orientation antibiogram, a practical diagnostic test that provides results in less than 24 hours. This enables veterinarians to determine not only if antibiotics should be used, but also which specific antibiotic will be most effective. This rapid feedback is critical in reducing the time farmers would otherwise spend on trial-and-error treatments, minimising losses due to disease​ and also ensuring overall reduction of the use of antibiotics.

Getting results in Senegal

In Senegal, the OneLab initiative has successfully calculated the level of resistance to antibiotics from different bacteria in the poultry sector. In 2023, the initiative was responsible for conducting up to 530 tests representing a total flock of 6.5 million birds across commercial poultry farms​. The data collected from these tests has provided valuable insights into the general level of resistance to antibiotics in the region as well as clinical information and evidence to accurately track their occurrence.

For instance, more than half of the bacteria tested were found to be resistant to most of the antibiotics commonly used by farmers in the region​. Without the diagnostics, veterinarians were blind to the sensitivity of different bacteria to specific antibiotics, often leading to the prescription of antibiotics that do not work. Farmers were also unaware of drug-resistant infections and effective measures to combat them before they led to unnecessary deaths among their flocks.

Poultry farmer feeding his flock in Senegal, 2023. Credit: GALVmed/Mediaprod

With diagnostic tools at their disposal, farmers who previously had to rely on a trial-and-error approach could now make informed decisions with the guidance of local veterinarians to reduce the losses of their livestock. This also helps them save significant sums of money by avoiding the purchase of ineffective antibiotics.

Moreover, the OneLab Initiative has sparked broader discussions about AMR within the veterinary community in Senegal. Annual meetings with veterinary authorities have raised awareness of drug-resistant microbes and the importance of diagnostics in combating their threat to animal lives. This growing awareness is essential to changing the mindset of both veterinarians and farmers when it comes to the advantages of the rational use of antibiotics​.

Clinical diagnostics as a path forward

Introducing diagnostics to veterinary clinics in poultry areas ultimately changes the paradigm of livestock management for both veterinarians and Small-scale producers. Livestock farmers in rural areas could have access to better antibiotic treatment options whenever a microbial infection is detected. This reduces the need for cycling through different antibiotics, as diagnostics offer a precise understanding of the infection.

Reducing poultry producers’ reliance on antibiotics helps to curb the further spread of drug-resistant microbes​. This change in approach, supported by diagnostics, also provides veterinarians with the ability to offer more accurate diagnostic services, improving the overall treatment of livestock. Farmers, in turn, are encouraged to adopt healthier practices that improve the health of their livestock while reducing the risk of antimicrobial resistance in them – a perfect win-win situation​.

The OneLab Initiative has demonstrated that more precise diagnostics can play a vital role in helping farmers rationalise their use of antibiotics to reduce the risks of antimicrobial resistance in their livestock. In Senegal, the number of diagnostics to get accurate solutions to bacterial infections in poultry has steadily increased since the initiative was launched. With this success, it is evident that introducing diagnostics in local veterinary clinics offers a scalable model that can be implemented in other regions suffering from similar challenges​. Initiatives bridging farmers’ access to diagnostics tools ultimately need worldwide support and visibility in order to increase their adoption as a viable solution to combat the growing antimicrobial resistance threat.

Header photo credit: ©2023 GALVmed/Mediaprod