Rocky mountain spotted fever

Rocky Mountain spotted fever is an infection caused by the bacterium Rickettsia rickettsii. This disease is spread through the bite of an infected tick. It is most often seen during the spring and summer, and many cases occur in children. The infection often presents with symptoms that include fever, rash, headache, and muscle pain. After a tick bite, signs and symptoms usually appear within 2 to 14 days. Some affected people may experience chills, confusion, diarrhea, nausea, vomiting, light sensitivity, hallucinations, or excessive thirst. Understanding these signs and the timing of symptom onset is important for seeking timely care. This information is based on the trusted definition of the condition.

Common symptoms of Rocky Mountain spotted fever include a high fever, headache, and a distinctive rash that may appear on the arms, legs, and trunk. Many people also notice muscle pain, chills, and confusion. In addition, some individuals may have gastrointestinal symptoms such as nausea, vomiting, and diarrhea, along with sensitivity to light and in some cases, hallucinations or excessive thirst.

This condition is caused by a bacterium called Rickettsia rickettsii which is transmitted through the bite of certain species of ticks. Being in areas where ticks are common, such as during outdoor activities like hiking, increases the risk of being exposed to this infection. Risk factors include spending time in known regions where the disease occurs and having close contact with areas that are heavily infested by ticks. The bacterium enters the body through the skin when an infected tick bites, leading to the development of the infection.

Rocky Mountain spotted fever is usually treated with antibiotics, such as doxycycline or tetracycline. Early treatment is important to help reduce the severity of the infection. The response to treatment can vary, and managing symptoms alongside the use of antibiotics is a common approach.

Information about prognosis is currently limited for this condition.

Information about current research and future directions is currently limited for this condition.