Quebec has reported a case of Rocky Mountain spotted fever, a potentially deadly tick-borne disease. Reports suggest that the fever was likely acquired in Ontario or Quebec, as this disease was reported in Ontario earlier this year. Here is what you need to know about the disease, how fatal it is, risk factors and symptoms you should look out for. What Is Rocky Mountain Spotted Fever (RMSF)? According to the Centers of Disease Control and Prevention, RMSF is a serious illness caused by bacteria and spread through the bite of an infected tick. It can be deadly if not treated early. How To Spot The First Symptom of RMSF? The first signs of RMSF can be vague and feel like other illnesses, including fever, headache, and muscle pain. The illness can get worse very quickly. A rash is a common symptom, but it often appears 2 to 4 days after the fever starts, which can make it hard to diagnose early. The rash can look like red splotches or tiny dots. If you get sick after being bitten by a tick or spending time in a wooded or brushy area, you should see a doctor right away. What Are The Long-Term Effects of RMSF? RMSF is a serious disease that does not become a long-term, chronic infection. However, a severe case can lead to permanent damage, such as hearing loss, mental disability, or even the loss of limbs due to blood vessel damage. There is no vaccine for RMSF. The best way to protect yourself is to prevent tick bites on yourself, your pets, and in your yard. Ticks are most active from April to September, but you can be exposed to them year-round. Because RMSF can be so dangerous, CDC explains that doctors often start treatment with an antibiotic called doxycycline as soon as they suspect the illness, even before lab test results are back. This is because test results can take weeks to return. Doxycycline is an approved treatment for people of all ages and is crucial for preventing severe illness and death. However, please make sure you get yourself checked out before you take any medication.