Ticks: There are more than 800 species of ticks worldwide. Ticks transmit diseases such as Lyme disease, Rocky Mountain spotted fever, Q fever, tularemia, babesiosis, and ehrlichiosis. Tick bite symptoms include fever, rash, weakness, nausea and vomiting. Treatment involves removing the tick with tweezers, cleaning the bite area with soap and water, and applying antibiotics to the bite.