Hantavirus Can Turn Deadly Fast: Experts Reveal The First Warning Signs
There is currently no specific treatment or licensed vaccine for hantavirus infection, and recovery largely depends on how quickly doctors recognize and respond to the disease. Ukrainian virologist Alla Myronenko highlighted the main warning signs and urged people to seek medical help without delay.
The expert noted that hantaviruses are a rare but dangerous family of viruses carried primarily by rodents, including field mice and rats. People usually become infected by inhaling virus particles from dried rodent urine, droppings or saliva, especially in poorly ventilated spaces.
Key Symptoms Doctors Look For
According to Myronenko, one of the first signs of hantavirus infection is a sudden rise in body temperature. Fever is typically accompanied by marked weakness and aching muscles that can resemble a severe flu, making early diagnosis challenging.
The doctor stressed that muscle pain in the lower back is especially characteristic and should not be ignored. Some patients may also develop a rash on the body, which, together with fever and intense fatigue, can point doctors toward a possible hantavirus infection.
If the disease develops with what specialists call a renal syndrome, when the kidneys are affected, additional symptoms of intoxication appear. These may include nausea, vomiting, headache, reduced urine output and swelling, indicating that toxic substances are accumulating in the body.
Why Speed Of Care Is Vital
Myronenko emphasized that there is no targeted antiviral therapy that directly eliminates hantavirus, so supportive care is the mainstay of treatment. Patients often need close monitoring in hospital, with intravenous fluids, control of blood pressure and, in severe cases, dialysis to support kidney function.
The outcome, she said, depends heavily on how quickly medical teams react once the first severe symptoms appear. Delayed hospitalization increases the risk of complications such as acute kidney failure or severe respiratory distress, which can be fatal.
Globally, different hantavirus strains cause either hemorrhagic fever with renal syndrome, more common in Europe and Asia, or hantavirus pulmonary syndrome, seen mainly in the Americas. Depending on the strain, reported mortality rates can reach 30% to 50% in the most severe forms.
Outbreak Linked To Cruise Ship
Concerns about hantavirus grew in Ukraine after reports of an outbreak on the polar cruise ship MV Hondius in April. From 11 April, three passengers died and five others fell ill after developing symptoms consistent with hantavirus infection, according to earlier media reports.
The strain suspected in that cluster, known as Andes virus, is of particular concern because it is the only hantavirus documented to spread from person to person under certain conditions. Most other hantaviruses do not typically transmit between humans, limiting outbreak potential.
Ukraine’s Ministry of Foreign Affairs stated that no signs of disease were detected among Ukrainian citizens from the vessel. Nonetheless, they were sent to medical facilities for quarantine and observation to minimize any risk of further spread and to allow prompt treatment if symptoms appeared.
Health authorities and virologists continue to monitor the situation and remind the public that prevention focuses on rodent control and avoiding contact with their excreta. Early recognition of fever, profound weakness, muscle and lower back pain, and signs of kidney involvement remains essential for improving survival chances.
