hopwood family has been battling lyme disease for years, and, first to be infected in 2010. >> noticezy and fatigue, bedridden, and then they finally diagnosed me. >> reporter: his wife and two children were diagnosed years later. >> been a really long road. >> reporter: new cdc study reviews decade research how to control black legged tics that transmits disease and prevent by the. >> it is very difficult. tics are small. >> reporter: research shows people need to be vigilant about wearing long sleeves, shots, shoes and insect repellant. >> taking showers after being outdoors, and checking yourself, ourselves, children, pets for presence of tics. >> reporter: researchers recommend homeowners take steps to keep tics out of their yard getting rid of leaves, spraying insecticides can lower number of tics by 80 . hopwood live in a wooded area and well aware of what they need to do. >> be sure you are not in the woods and going home and go to bed. you have to take a shower, wash your clothes, you know, be cautious. >> reporter: watch out for symptoms including pain, fatigue, headaches, be