Most parents are aware of Lyme disease (borreliosis), which can be transmitted by ticks. However, there is another infection that is discussed much less frequently—tick-borne encephalitis.
This is a viral disease that can affect the nervous system—specifically the brain and spinal cord. In most children, there are no serious consequences following a tick bite, but in some cases, the infection can be severe.
That is why in many European countries, vaccination against tick-borne encephalitis is an important part of prevention for children and adults who live in or travel to at-risk regions.
For Ukrainian parents, this topic is also becoming more relevant: families are traveling more, spending time in the mountains, forests, camps, and nature. With this, many questions arise:
- Is the vaccine necessary for my child?
- When should it be given?
- Can vaccination occur before summer?
- How effective and safe is the vaccine?
Let’s calmly and systematically address these questions.
What is tick-borne encephalitis?
Tick-borne encephalitis is a viral infection transmitted by infected ticks. The pathogen belongs to the flavivirus family. Infection most commonly occurs:
- after a tick bite;
- less frequently—through the consumption of unpasteurized milk from infected goats or cows.
It is important to understand:
- tick-borne encephalitis and Lyme disease are different diseases;
- borreliosis is caused by bacteria;
- tick-borne encephalitis is a virus.
Therefore:
- antibiotics do not protect against tick-borne encephalitis;
- following a tick bite, a doctor may sometimes recommend prophylaxis for borreliosis with antibiotics in certain situations, but this does not prevent tick-borne encephalitis.
Relevance to Ukraine
Ukraine is not considered a highly endemic region for tick-borne encephalitis. The highest rates of the disease are recorded in Central and Northern European countries—specifically in Austria, the Czech Republic, Slovenia, the Baltic countries, and parts of Scandinavia.
At the same time, isolated cases and natural foci of the infection have also been described in Ukraine. The risk is higher:
- in forest areas;
- during trips to the Carpathians;
- when traveling to European countries where tick-borne encephalitis is common;
- in children who frequently spend time in the woods, camps, or hiking.
Vaccination is particularly relevant for families who:
- regularly vacation in the mountains;
- travel around Europe;
- have a summer home or live near a forest;
- engage in tourism or camping.
How does tick-borne encephalitis manifest?
Not every infected person experiences severe symptoms. In some individuals, symptoms may be minimal or resemble a common viral infection.
The classic course of the illness often has two phases.
First phase
Symptoms may appear 7–14 days after a tick bite:
- fever;
- weakness;
- headache;
- muscle pain;
- nausea;
- severe fatigue.
In many cases, the illness ends here.
Second phase
Possibly occurring symptoms include:
- severe headache;
- vomiting;
- drowsiness;
- light sensitivity;
- stiff neck muscles;
- consciousness disturbances;
- seizures;
- weakness in extremities.
Due to the risk of neurological complications, timely vaccination against tick-borne encephalitis is crucial.
How is the diagnosis made?
The diagnosis is established by a doctor based on:
- symptoms;
- the fact of a tick bite or being in an endemic region;
- laboratory studies.
Self-checking "after every tick" is usually unnecessary.
Tests immediately after a bite typically do not have diagnostic value, and examining the tick itself does not always help determine the actual risk of infection.
Is there a treatment?
As of now, there is no specific antiviral treatment for tick-borne encephalitis. Treatment is primarily:
- symptomatic;
- supportive.
In severe cases, hospitalization may be required.
That is why prevention is key.
Vaccination against tick-borne encephalitis: what is important to know
Vaccination is the most effective method of preventing tick-borne encephalitis.
Modern vaccines:
- do not contain "live" virus;
- cannot cause the disease;
- have a high safety profile;
- are well-studied in children.
Globally, the most commonly used vaccines are:
- Tikvax/FSME-IMMUN;
- Encepur.
There are separate pediatric forms of these vaccines for children.
Who is recommended to receive the tick-borne encephalitis vaccine:
- children living in or spending extended periods in at-risk regions;
- families traveling to endemic countries;
- children who frequently visit forests or mountains;
- tourists;
- participants of camps and hikes.
In many European countries, such vaccination is common practice.
Vaccination schedule
Standard schedule
The classic scheme consists of three doses.
- The first dose—on any day.
- The second dose—1–3 months after the first.
- The third dose—6–12 months after the second dose.
Booster vaccination is usually recommended every 3 years; thereafter, every 3–5 years.
After that, long-term protection is formed. There is also a separate schedule for emergency prophylaxis after a tick bite. After completing the full vaccination course, protection develops in more than 95% of vaccinated individuals.
Common mistakes and myths
-
"If the tick is removed quickly, there’s no risk."
The transmission of the tick-borne encephalitis virus can occur within the first hours after the tick attaches.
-
"An antibiotic after a bite will provide protection."
No. Antibiotics do not work against viruses.
-
"My child rarely goes into the woods—vaccination isn't necessary."
The risk depends not only on the frequency of walks but also on the region and travel.
What to do after a tick bite?
If your child is bitten by a tick:
- calmly remove it;
- do not pour oil or alcohol on it;
- treat the bite area;
- monitor your child's condition.
You should consult a doctor if:
- a fever develops;
- a rash appears;
- there is a headache;
- weakness occurs;
- vomiting happens;
- drowsiness sets in;
- any neurological symptoms manifest.
Other prevention methods
Even after vaccination, it is important to:
- use repellents;
- check the skin after walks;
- wear closed clothing in the woods;
- check hair and areas behind the ears;
- wash and inspect clothes after hikes.
The vaccine does not protect against borreliosis (Lyme disease, which is also transmitted through tick bites), so prevention of tick bites remains important.
What can be done at home?
- regularly check the child after walks;
- have a tick-removal tool at home;
- plan vaccinations in advance of the season;
- use repellents appropriate for the child’s age;
- remain calm about every tick bite;
- avoid unnecessary tests without a doctor's recommendation;
- consult a doctor immediately if there are any questions or symptoms.
Tick-borne encephalitis is not the most common infection, but it is a disease best avoided. Modern vaccination allows for a reliable reduction in the risk of severe illness and neurological complications.
The vaccine is generally well-tolerated by most children, and the decision to vaccinate is best made in consultation with a pediatrician, considering lifestyle, travel plans, and individual risk factors.
Calm prevention, attentiveness to tick bites, and an evidence-based approach are much more beneficial than fear and chaotic actions after each outing in nature.
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