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- From: mcg2@ns1.cc.lehigh.edu (Marc Gabriel)
- Newsgroups: rec.backcountry
- Subject: Re: Lyme Disease E-mail Network...
- Message-ID: <1992Dec22.035518.17931@ns1.cc.lehigh.edu>
- Date: 22 Dec 92 03:55:18 GMT
- Organization: Lehigh University
- Lines: 62
-
- In article <1992Dec21.135601.27195@dxcern.cern.ch>, myersdr@epcinext3.cern.ch (D
- avid Myers) writes:
- >know if information is available about the (European) areas in which the vector
- >is endemic. Is the tick sensitive to temperature, less likely to be encountered
- >above a certain altitude, at a certain time of year, etc? Also, what are the
- >initial symptoms?
-
- Well,
- In the US, the majority of LD patients get bitten during the summer months,
- although cases are reported all year. On the European continent, I belive the
- Ixodes ricinus is the tick responsible. Below is a copy of a graph I have
- infront of me that attempts to illustrate the relative "risk periods" for
- contracting LD for Ixodes bites in most parts of the US and Europe:
-
- ********
- *** *******
- *** *****
- **** ******
- **** *****
- ** **** *****
- ******
-
- DEC FEB APR JUN AUG OCT DEC
-
-
- What this graph attempts to point out is that the risk grows very rapidly
- from April to June, plateau's all summer, then slowly decreases until
- January, when the risk is lowest.
- Temperature does not seem to be a direct factor, although it must certainly
- be correleted with their habitat.
-
- As for the symptoms, look for this:
-
- * 60% of patients get a red, circular rash that appears to be spreading
- inside out.
- * Along with that, patient may develop headaches, feavers, fatigue,
- stiffness, slight muscle or joint pains, and occasionally swelling.
-
- Lyme is typically treatable at this phase. If not...
-
- * Untreated patient can expect neurological complications, ranging from "pins
- and needles" feeling in extremities to periodic facial paralysis and
- difficulty concentrating.
- * So called "Lyme arthritis" (not a very good name, but it will do) develops
- in most untreated patients. It rarely becomes an problem instantly. Rather,
- it may originate from migratory pains that seem to attack many different
- joints. Eventually, the knee is the joint that is most in pain.
- * Rarely, the heart is involved. LD can cause hearbeat irregularities that
- have been linked to a few deaths (not many).
-
- Hope this helps.
-
- -Marc.
-
- --
- ---------------------------------------------------------------------
- Marc C. Gabriel '93 - U.C. Box 545 -
- (215) 882-0138 Lehigh University
- mcg2@Lehigh.EDU Bethlehem, PA 18015
- Compu$erve: >internet:mcg2@Lehigh.edu
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- I'm still thinking about the witty one-liner I'm supposed to put here.
-