Doctors warn of ticks during summer months OKLAHOMA CITY (KOSU) - Doctors are warning Oklahomans to be on the lookout for ticks throughout the summer months of June and July when occurrences of Rocky Mountain Spotted Fever are at their highest. Men over the age of 30 and children have the highest fatality rate from the disease. KOSU's Michael Cross reports. © Copyright 2010, KOSU