Lithuania Issues Public Health Alert Over Rodent-Borne Diseases
While recent health concerns across Europe have focused heavily on the spread of hantavirus, public health officials in Lithuania are shifting the spotlight back to more localized, yet equally severe, rodent-borne infections. The National Public Health Center (NVSC), under the Ministry of Health, has issued a fresh advisory warning that while hantavirus cases are not currently registered in the country, other dangerous pathogens like yersiniosis and tularemia remain a persistent threat to the population.
Health experts note that the risk is particularly high during seasonal transitions when rodents seek shelter in human dwellings. The advisory serves as a critical reminder for both residents and international travelers to the region about the hidden dangers found in common environments such as cellars, attics, and storage sheds.
Primary Pathogens and Clinical Symptoms
According to Aušra Valaikienė, an advisor at the NVSC’s Communicable Disease Management Department, yersiniosis is currently one of the most frequent diseases directly transmitted by rodents in the region. Caused by bacteria of the genus Yersinia, this pathogen is uniquely dangerous due to its ability to remain viable in cold environments and persist on food products for extended periods.
The clinical presentation of yersiniosis can be deceptive. Patients typically experience fever and intense abdominal pain, which medical professionals warn can easily be mistaken for acute appendicitis. Beyond direct contact with rodents, the infection can spread indirectly through animal-derived foods—particularly undercooked pork—as well as contaminated vegetables or water sources.
In addition to yersiniosis, officials are highlighting the risks of tularemia. This serious illness can be contracted through direct contact with an infected animal, insect bites, or the consumption of contaminated water and meat. The onset of tularemia is often sudden, characterized by high fevers reaching 38–40°C, chills, headaches, muscle pain, and general exhaustion. As the disease progresses, it may cause more severe complications, including inflammation of the eyes with purulent discharge, sore throat, vomiting, and an enlarged liver or spleen. In some cases, patients suffer from a persistent dry cough and chest pains, indicating respiratory involvement.
Transmission Mechanics and Environmental Risks
The transmission of these diseases is not limited to physical bites. Pathogens are primarily shed through the urine, feces, and saliva of mice and rats. Furthermore, these rodents act as hosts for fleas and ticks, which can carry secondary infections to both humans and domestic pets.
One of the most significant risks to the public occurs through the inhalation of contaminated dust. When cleaning out old warehouses, attics, or apartment building basements, dried rodent excrement can become aerosolized. Inhaling these particles is a primary route for infection. Liutauras Grigaliūnas, a biologist and pest control expert at Dezinfa, explains that the danger is often underestimated due to the subtle way rodents mark their territory.
“Rodents urinate frequently because they use urine as a vital chemical signal to mark territory and communicate reproductive status,” Grigaliūnas notes. These microscopic droplets are left on surfaces, near baseboards, in cabinets, and on garage floors. If a building has a rodent presence, it is highly probable that surfaces used for food preparation or work are already contaminated with these invisible traces.
Essential Prevention and Safe Cleaning Protocols
To mitigate these risks, health officials emphasize a proactive approach to home maintenance and hygiene. The first line of defense is structural: sealing even the smallest cracks in walls, door frames, and window seals. Experts recommend using durable materials like concrete or metal mesh for ventilation openings, as rodents can easily chew through wood or plastic.
A critical warning has been issued regarding the cleaning of suspected infested areas. A common mistake made by residents is the hasty sweeping of dry droppings or dust. This action forces pathogens into the air, where they are easily inhaled. Instead, the NVSC recommends a “wet cleaning” approach using warm soapy water and disinfectants. Protective gear, including gloves and masks, should be worn, and spaces must be thoroughly ventilated during and after the cleaning process.
Food safety remains paramount in preventing yersiniosis and salmonellosis. All food should be stored in airtight containers, and any produce found in areas where rodents may have roamed must be discarded. Even if only a small portion of a vegetable appears gnawed, the entire item should be considered contaminated due to the likelihood of urine traces. Regular hand washing and the maintenance of a clean perimeter around residential buildings are the final, essential steps in breaking the chain of infection.
Source: BNS
Comments