Although tick populations are still dormant, cases of Lyme disease continue to be diagnosed - 87 in the first two months of 2011, which is 13 more than last January and February.
Tick-borne encephalitis (TBE), potentially deadly, has not been diagnosed this year. It usually requires hospitalization, while Lyme presents with a fuzzier set of symptoms, can be elusive and often goes undiagnosed.
Unlike TBE, there is no effective vaccine against Lyme, nor does one infection provide future immunity.
Encephalitis is usually seen in two waves in the warmer months, while doctors diagnose Lyme disease (borreliosis) year round.