Triathlete Hospitalised With Bacterial Infection After Training in Polluted Open Water

A Welsh triathlete has described how chasing his sporting ambitions nearly derailed one of the biggest races of his life when he fell seriously ill after swimming in contaminated open water.

Andrew Jones, who lives in Carmarthen, competes in triathlons around the world and has secured a place at the Ironman World Championship in Kona, Hawaii, this month. But in the run-up to that event, a swim in water he believes was polluted left him fighting a painful bacterial infection rather than fine-tuning his race preparation.

The athlete contracted Campylobacter, an illness caused by bacteria that is commonly linked to contaminated water and food. He said the experience was "pretty nasty" and that it struck at the worst possible moment in his training calendar.

Recalling the onset of symptoms, Jones explained that he began to feel severely unwell on a Sunday evening at home. His temperature climbed, his heart rate rose sharply, and he began shaking uncontrollably. The deterioration was rapid enough that he went directly to an accident and emergency department for treatment.

Jones said he was admitted to hospital just over a week before what he described as one of the biggest races of his life. He admitted the timing left him frustrated, not only because of the disruption to his preparation but because athletes enter open water trusting that conditions are safe.

He said the episode has made him think twice about swimming in the particular area where he believes he picked up the infection. That loss of confidence is one of the less visible consequences of poor water quality, beyond the immediate medical impact.

His case has emerged as Triathlon Cymru, the national governing body for the sport in Wales, rolls out what it describes as the first project of its kind to monitor the water its athletes compete in. The Safer Blue Spaces initiative is being delivered in partnership with Swim Wales, Bangor University and Imperial College London, with funding from the insurance group Admiral.

At the heart of the project are small sampling devices, roughly the size of a fifty-pence coin, that are attached to the backs of competitors' wetsuits. Athletes taking part in the SWYD Sprint Triathlon in Barry during August were pulled aside before their swim so the devices could be fitted.

The purpose of the technology is to overcome a long-standing weakness in the way open-water safety is assessed. Race organisers typically test water at one or two locations shortly before an event, which gives only a snapshot of conditions at a single moment and in a limited area.

By contrast, the wearable samplers travel the exact route taken by swimmers, meaning the data gathered reflects what athletes are actually exposed to during a race. Once competitors finish the swim, they head to the transition area, remove their wetsuits and continue racing, while the technical team steps in to cut the devices free.

The samplers are then sent to Bangor University for analysis. Kate Herridge, a PhD student working on the project, said the next stage involves concentrating the water samples and establishing whether any pathogens have attached themselves to the devices. That process, she explained, allows researchers to detect and identify what is present in the samples.

Amy Jenner, Triathlon Cymru's head of development, said understanding what is in the water is fundamental to the organisation's work because it is responsible for putting athletes into it. She noted that Wales hosts roughly 60 triathlon events each year, making reliable data on water quality a significant operational concern.

Jenner said the funding allows the project to carry out research and testing, and that the findings can then be shared with athletes, event organisers, Natural Resources Wales and Public Health Wales. The aim is to build a clear picture of the state of Welsh waters and to give everyone involved a firmer evidence base.

Simon Webb, who organises the Barry SWYD Sprint Triathlon, stressed that competitors should be able to swim without the fear of falling ill. His comment reflects a growing recognition that water quality is not simply an environmental issue but a practical health and safety matter for the sports sector.

Triathlon Cymru hopes the data collected through Safer Blue Spaces will eventually be shared with environmental agencies and water companies. If that happens, it could help improve understanding of what is entering seas, lakes and rivers, and inform efforts to raise water quality standards.

For athletes like Jones, the stakes are personal as well as competitive. An infection contracted during training can cost weeks of preparation, undermine confidence in a venue, and in the worst cases lead to hospital care. His experience underlines why the project's organisers believe better monitoring is not a luxury but a necessity for a sport that depends on safe open water.