My husband developed what we thought was Rocky Mountain Spotted Fever (rickettsial bacteria carried by dog ticks)in early June and was very sick for 3 weeks. He was a textbook case...fever, then a spotted rash that started on extremities and went all over including palms and soles of feet, muscle pain, joint pain, headache, loss of appetite, swelling of hands, feet, face, symptoms of meningitis. We are in Northern VA but had visited upstate NY and gone fishing in the Catskills a week prior to the fever onset. We never found a tick, buy there was a peculiar looking bug bite near his ankle for more than a week. He had two ER visits, an overnight hospital stay, a spinal tap, etc. and were treated by an excellent ID doc. The diagnosis however was made on day 3 - the day the rash started, by his internist after our suggesting it was RMSF. They had never seen it in practice, even though it's endemic to the midAtlantic region, but they agreed to treat with Doxycycline ASAP. The fever and rash resolved within a few days, although meningitis symptoms and muscle/joint pains got worse. Labs showed low platelets, anemia and slightly elevated WBCs in the spinal fluid. Everything pointed to RMSF.
At week 4, serology testing was done to confrim the diagnosis. He was tested for Rickettsia (RMSF and related illnesses), ehrlichiosis and Lyme Disease. All tests came back NEGATIVE. The only abnormality was in band 39 on the Lyme test. I understand you need to have 2 abnormal bands to be Lyme + according to CDC. However, I read that band 39 is THE MOST SPECIFIC for the Lyme bacteria. Doesn't this imply a +Lyme antibody test, despite the CDC definition? I hear false negatives are common in Lyme. Are they also common in RMSF? Parhaps we treated so early (Day 3) that the body did not produce detectable antibodies? The lab which ran the tests was at Mayo Clinic in Rochester, NY.
Finally, he was on Doxycycline, 100 mg/2/day for 14 days. That is more than enought to knock out rickettsia, but should that be enough to knock out an early case of Lyme Disease???