Pleomorphic bacteria transmitted by many arthropods, including chiggers, ticks, fleas, mites, and lice, as well as leeches and protists, causing Typhus, and Rocky Mountain Spotted Fever. Also see Febris Wolhynia.Encyclopedia Entry for Rickettsia :Rickettsialpox - Rickettsia akari (G-; intracellular) from mite bitesEncyclopedia Entry for Rickettsia :Rickettsialpox. Rickettsialpox is caused by the bacteria, Rickettsia akari. It is commonly found in the United States in New York City and other city areas. It also has been seen in Europe, South Africa, Korea, and Russia. The bacteria are spread by the bite of a mite that lives on mice.The disease begins at the site of the mite bite as a painless, firm, red lump ( nodule ). The nodule develops into a fluid-filled blister that bursts and crusts over. This lump may be up to 1 inch (2.5 centimeters) wide. Symptoms usually develop 6 to 15 days after coming in contact with the bacteria. Other symptoms may include: Discomfort in bright light ( photophobia ) Fever and chills Muscle pain Rash that looks like chickenpox Sweating The rash is not painful and usually clears within a week.The health care provider will do an examination to look for a rash similar to the one in chickenpox. If rickettsialpox is suspected, these tests will likely be done: Complete blood count ( CBC ) Tests of blood serum (serologic studies) Swabbing and culture of the rash.The goal of treatment is to cure the infection by taking antibiotics.A full recovery is expected when antibiotics are taken as instructed.There are usually no complications if the infection is treated.Call your provider if you or your child has symptoms of rickettsialpox.Controlling mice helps prevent the spread of rickettsialpox.Rickettsia akari.Paddock CD. Rickettsialpox.Encyclopedia Entry for Rickettsia :Rickettsial infection. Source of disease: Rickettsia speciesEncyclopedia Entry for Rickettsia :Rickettsialpox. Source of disease: Rickettsia akari