Early Lyme Disease Case Reported in Germany in March, Ticks Already Active

Germany is facing an exceptionally early start to the tick season in 2026. As leading media report, the first confirmed case of Lyme disease in the country was already recorded in the first days of March, signaling premature activity of these dangerous arachnids. Experts link this phenomenon to the mild winter conditions that prevailed in many regions of Germany. Ticks of the Ixodes genus, the main vectors of Lyme disease in Central Europe, are typically active from early spring to late autumn, at temperatures exceeding about 7-10 degrees Celsius. Their development cycle lasts from two to three years, and at each stage (larva, nymph, imago), they require a blood meal to progress to the next stage. Mild winters, one of the effects of climate change, significantly improve tick survival rates, leading to an increase in their population and an extension of the active period. The threat is not localized to one federal state. Reports indicate that ticks are already active throughout Germany. This means the risk of a bite exists not only during forest hikes in Bavaria or Baden-Württemberg, known for the endemic occurrence of tick-borne encephalitis (TBE), but also in urban parks, allotment gardens, and green spaces around cities. German public health institutions, such as the Robert Koch Institute (RKI), have been monitoring the spread of tick-borne diseases for years. For TBE, there is a map of risk areas where vaccination is particularly recommended. However, for Lyme disease, whose incidence is higher and less dependent on specific enclaves, such precise mapping is more difficult, and vigilance must be maintained everywhere. In response to the early reports, doctors and health protection experts are reminding people of the basic principles of prevention. Key is appropriate clothing during outdoor activities: long trousers tucked into socks and light colors on which a crawling tick is easier to spot. It is necessary to use repellents containing active substances such as DEET or icaridin. After returning home, the entire body should be thoroughly inspected, with particular attention to armpits, groin, backs of the knees, and skin behind the ears – areas where the skin is thinner and warmer. „Milde Winter führen zu einer höheren Zeckenpopulation und einem früheren Beginn ihrer Aktivität. Das erhöht das Risiko der Krankheitsübertragung und erfordert von uns eine frühere Wachsamkeit.” (Mild winters lead to a higher tick population and an earlier start to their activity. This increases the risk of disease transmission and requires earlier vigilance from us.) — Jörg Hacker, President of the German National Academy of Sciences Leopoldina If a tick is found, it should be removed as quickly as possible using tweezers or a special tool, grasping it as close to the skin as possible and performing a straight, decisive pull. It must not be smeared with fat or alcohol beforehand, as this may provoke the arachnid to vomit and increase the risk of pathogens being pushed into the wound. do 30% — Up to 30% of ticks in some regions of Germany may be carriers of Lyme disease The difference between the two main tick-borne diseases is significant. Tick-borne encephalitis (TBE) is a viral disease for which there is an effective vaccine. Vaccination is recommended by the Standing Committee on Vaccination (STIKO) for people living, working, or vacationing in risk areas. In contrast, Lyme disease, caused by bacteria of the Borrelia genus, does not have an approved vaccine for humans. Its early recognition (characteristic erythema migrans) and treatment with antibiotics is crucial to avoid late, serious complications. In light of the early tick activity in 2026, German health services are likely to strengthen communication regarding prevention, and general practitioners will pay more attention to the possibility of tick-borne disease symptoms in patients, even at this time of year.