New Hampshire health officials said there have been fewer cases of Lyme disease in recent years, down from a high in 2008, but people should still take precautions to prevent being bitten by ticks. There were 1,301 cases of Lyme disease identified in the state in 2011 and 1,460 in 2012. There were 1,600 cases in 2008. The Centers for Disease Control and Prevention said there were 24,364 cases of Lyme disease nationally in 2011, which is down from a high of nearly 30,000 in 2009. Lyme disease is transmitted by the bite of an infected deer tick. Symptoms include fever, headache, fatigue, and a skin rash that is round or looks like a bull’s-eye.