The months of April and May are the most active for ticks. Things are warming up for them too, and they’re hungry! Particularly in the Northeast, deer ticks and there black-legged ticks can be infected with a bacteria which they can transmit to humans. Symptoms tend to appear spring through autumn, creating what some call a “Lyme season.” A person is more likely to get the disease during the spring and summer because a lot of time is spent outside, often with large amounts of skin exposed.