Anaplasmosis:
- Caused by the Anaplasma phagocytophilum bacteria, carried by the deer tick (Ixodes scapularis)
- Signs and symptoms include: fever, headache, malaise, and body aches. Encephalitis/ meningitis may occur but is rare
- 98 cases have been reported to date in 2014, compared to 94 in all of 2013
- Polymerase Chain Reaction (PCR) is the preferred testing method
- Caused by the Babesia parasite, carried by the deer tick (Ixodes scapularis)
- Signs and symptoms include: extreme fatigue, aches, fever, chills, sweating, dark urine, and anemia
- 17 cases have been reported to date in 2014, compared to 36 in all of 2013
- PCR or identification of the parasite in a blood smear are the preferred testing methods
- Caused by the Borrelia burgdorferi bacteria, carried by the deer tick (Ixodes scapularis)
- Signs and symptoms include: erythema migrans rash, fever, headache, joint and muscle pains, fatigue, arthritis, Bell’s palsy, meningitis, and carditis
- 526 cases have been reported to date in 2014, compared to 1,376 in all of 2013
- Lyme disease cases take several months to be entered and classified, so although these numbers may seem low they will increase dramatically as reports are received and processed
- Two tier testing (ELISA or EIA, followed by Western blot) is the preferred testing method
- Caused by the Powassan virus, carried by the woodchuck tick (Ixodes cookei) and potentially by the deer tick (Ixodes scapularis)
- Signs and symptoms include: fever, headache, vomiting, weakness, confusion, seizures, and memory loss
- 0 cases have been reported to date in 2014, compared to 1 in all of 2013
- Testing is performed by federal CDC, samples should be sent to Maine’s Health and Environmental Testing Laboratory (HETL) to be forwarded to CDC Fort Collins
- To date in 2014, three co-infections have been reported: two co-infections with anaplasmosis and Lyme disease, and one co-infection with babesiosis and Lyme disease
- In 2013, 16 co-infections were reported: nine co-infections of Lyme disease and anaplasmosis, four co-infections of Lyme disease and babesiosis, two co-infections of anaplasmosis and babesiosis, and one co-infection of Lyme disease, anaplasmosis, and babesiosis.
- Ehrlichiosis is a bacterial disease, carried by the Lone Star tick which is unusual in Maine, but very common in the southern United States. PCR is the preferred testing method.
- Rocky Mountain Spotted Fever is a bacterial disease carried by multiple ticks. Maine has a tick that is a potential carrier (the dog tick, Dermacentor variabilis), but they are not known to be infected in Maine.
- Consider tick-borne illnesses in your differential, particularly for individuals with “summer flu” symptoms
- Submit samples for testing
- Treat patients appropriately – recommendations for treatment are available from http://www.idsociety.org/uploadedfiles/idsa/guidelines-patient_care/pdf_library/lyme%20disease.pdf
- Report cases. All tick-borne illnesses are reportable in Maine, including the erythema migrans rash which is confirmatory. To ease the reporting burden of EM rashes, a registry report option is available (see page 3). All cases should be reported by phone to 1-800-821-5821 or by fax to 1-800-293-7534.
- Maine CDC vectorborne webpages: http://www.maine.gov/dhhs/mecdc/infectious-disease/epi/vector-borne/index.shtml
- Maine Physician’s Reference Guide: http://www.maine.gov/dhhs/mecdc/infectious-disease/epi/vector-borne/documents/tick-reference-guide.pdf
- Lyme forms for providers: http://www.maine.gov/dhhs/mecdc/infectious-disease/epi/vector-borne/lyme/index.shtml#resourcephysicians
- Guidance on treatment: http://www.idsociety.org/uploadedfiles/idsa/guidelines-patient_care/pdf_library/lyme%20disease.pdf
- Lyme disease data: https://data.mainepublichealth.gov/tracking/home
This information originally appeared in a health alert, which is available at http://www.maine.gov/tools/whatsnew/attach.php?id=625757&an=2