- Symptoms - Symptoms Diagnosis and Treatment.
- Statistics - Statistics and Epidemiology.
- Other Tick Borne Diseases - Other Tick Borne Diseases.
Anaplasmosis is a tickborne disease caused by the bacterium Anaplasma phagocytophilum. It was previously known as human granulocytic ehrlichiosis (HGE) and has more recently been called human granulocytic anaplasmosis (HGA). Anaplasmosis is transmitted to humans by tick bites primarily from the black-legged tick (Ixodes scapularis) and the western black-legged tick (Ixodes pacificus). Of the four distinct phases in the tick life-cycle (egg, larvae, nymph, adult), nymphal and adult ticks are most frequently associated with transmission of anaplasmosis to humans. Typical symptoms include: fever, headache, chills, and muscle aches. Usually, these symptoms occur within 1-2 weeks of a tick bite. Anaplasmosis is initially diagnosed based on symptoms and clinical presentation, and later confirmed by the use of specialized laboratory tests. The first line treatment for adults and children of all ages is doxycycline. Anaplasmosis and other tickborne diseases can be prevented.
Anaplasmosis Topics
Symptoms, Diagnosis, and Treatment
Signs of illness, what to expect from your physician…
Statistics and Epidemiology
Incidence, Geography, seasonality, and more…
In-Depth Information
Guidelines and Recommendations…
Related Tick Topics
Avoiding Ticks
Avoid getting infected…
On CDC's Ticks website
Tick Lifecycle and Hosts
How ticks spread disease…
On CDC's Ticks website
Removing a Tick
How to remove a tick…
On CDC's Ticks website
Other Diseases Caused by Ticks
Learn more about other tickborne diseases that can affect your health…
On CDC's Ticks website
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