make sure you don't pick upper oupper -- pick up one of those critters. >> using a good repellent and in that case more is better. deet is a common repellent to use. 20 to 25% deet is fine to use on your skin and clothing but not on children below 2 years of age, perhaps 10% on children years 2-5. also, inspecting each other when you're out hiking, looking, checking for ticks. it looks kind of odd to do this if you have long socks, pull them out over the top of your pants leg. ticks get on that way. >> if you do spot a tick, what's your best advice? remove it yourself or go straight to the doctor? >> if you can get a doctor to remove it within that specified period of time, we're finding they can be transmitted quickly, 24-48 hours. we recommend a careful extraction using tweezer or