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Lymes Disease (Borreliosis). By Christer Suvatne. Introduction. Spread by Ticks Caused by bacteria (borrelia) (Borrelia Burgdorferi) It causes borreliosis (lymes disease) The disease is multisystemic – involvement of skin, heart, joints and CNS Affects mostly young and middle-aged people.
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Lymes Disease(Borreliosis) By Christer Suvatne
Introduction • Spread by Ticks • Caused by bacteria (borrelia)(Borrelia Burgdorferi) • It causes borreliosis (lymes disease) • The disease is multisystemic – involvement of skin, heart, joints and CNS • Affects mostly young and middle-aged people
TICKS Blacklegged Tick (deer tick) (spreads Lyme disease) Wood Tick (dog tick) (does not spread Lyme disease) adult male adult female
Adult (female) Adult (male) Nymph • Can lead to disease:40-60% adult20-30% nymph0% larva Larva
Two-Year Life Cycle of Blacklegged Tick MEAL 2 (peak feeding time May-mid July) • Person • Mouse • Dog • MEAL 3 • For adults that did not feed in fall • Person • Deer • Dog • MEAL 1 • Mouse • Bird EGGS LARVAE NYMPHS Nymphs molt into adults Eggs laid, adults die Larvae molt into nymph stage SPRING SUMMER WINTER FALL ADULTS • MEAL 3 • Person • Deer • Dog Nymphs dormant
To Get Lyme Disease • Blacklegged tick must be infected with Lyme disease bacteria • Only the nymphs and adult females can transmit the Lyme disease bacteria • Tick must be attached 24 - 48 hours before it passes bacteria to host
Most cases are children and middle aged people • 54% is men • Most usual symptoms is neurological (54%) (248ppl) • Arthritis(15ppl) • totally 238 people were hospitalized in 2006
Stage 1 – Early localized infection3 to 30 days after deer tick bite • Rash (often “bulls-eye”)(red, warm, painless) • Fever • Chills • Headache • Muscle and joint pain • Fatigue • Flue like symptoms • Can develop Borreliosis even if rash is not present
As the rash increases in size, it clears in the middle and develops a red ring around the outside. This rash:May expand to a very large size,Is usually not painful or itchy, and Often appears on the thighs, groin, trunk, armpit, or back. rash has been reported in about 60 to 80 percent of adults and 50 percent of children Erythema migrans (EM) rash characteristic of Lyme disease
Sometimes do not have bulls eye appearance(redden area without an outer ring)Not everyone gets a rash..the early sign and symptom. (headache, fever, chills etc) is similar to other diseases, so difficult to diagnose Lymes if have no rash
Stage 2 – Early disseminated infection Days to weeks after illness onset • Multiple rashes • Facial paralysis on one side (bells palsy) • Fever, stiff neck, headache -> meningitis • Weakness, numbness, arm/leg pain • Irregular heart beat • Persistent weakness and fatigue
Multiple Rashes • Reaction as bacteria move through body • Not caused by multiple tick bites
Multiple Rashes • This is another example of a multiple rash.
Stage 3 – Late persistent infection Weeks to months after illness onset • Fatigue • Chronic arthritis (usually affect knees) • Nervous system problems (meningitis)and problems with short term memory, concentration,
Joint Swelling Joint swelling and pain may occur weeks to months after onset of illness if left untreated.
Showing numbers in Norway • 2007 had the highest cases of lymes disease.
References • www.facebook.com • www.wikipedia.com • http://www.lymediseaseassociation.org/ • http://www.tidsskriftet.no/?seks_id=1690011