Why in news?
In May 2026 veterinary authorities in Kendrapada district of Odisha reported that dozens of cattle had died due to an outbreak of rumen fluke disease, also known as amphistomiasis. Farmers noticed severe diarrhoea, weight loss and swelling under the jaw in their animals. Rapid response teams collected samples and began treatment to contain the disease.
Background
Rumen flukes are parasitic flatworms (paramphistomes) that live in the forestomachs of cattle and other ruminants. Their life cycle requires a snail as an intermediate host. Eggs shed in the manure hatch in water, and the larval stages infect snails. Mature larvae leave the snail, encyst on vegetation and are eaten by grazing animals. Heavy infections of immature flukes in the small intestine cause disease: animals lose appetite, become lethargic and suffer watery diarrhoea. If untreated, dehydration can lead to death. Proper grazing management and timely use of anthelmintic medicines can prevent major losses.
Symptoms and management
- Clinical signs: Infected cattle show profuse diarrhoea, rapid weight loss, swelling under the lower jaw (bottle jaw), reduced milk yield and general weakness.
- Treatment: Veterinary doctors recommend anthelmintic drugs to remove the parasites and supportive care to rehydrate affected animals. Early intervention improves survival.
- Prevention: Farmers are advised to provide clean drinking water, avoid grazing animals in snail‑infested wetlands and rotate pastures. Maintaining green fodder during summer reduces the chance of animals eating contaminated dry grasses.
- Monitoring: Rapid response teams collect blood and stool samples to confirm diagnosis and track the spread. Timely reporting by farmers helps officials contain outbreaks quickly.
Conclusion
The rumen fluke outbreak underscores how parasitic diseases can suddenly affect livestock health and farmers’ livelihoods. Simple measures like good pasture management, clean water and prompt veterinary care can prevent large losses. Awareness campaigns and regular de‑worming will help communities protect their cattle from future episodes.