R. Ehrlichia and R. Anaplasma

• What does Ehrlichia chaffeensis? 


  • human monocytic ehrlichiosis
• What does Anaplasma phagocytophilum cause? 


  • anaplasmosis
• How are these diseases transmitted?

  • ticks
• What does the bacteria trigger?


  • its own phagocytosis by leukocytes
• What are the three developmental stages in leukocytes?


  • Elementary body (infective)
  • initial body
  • morula (ball of anaplasma bacteria)
• How is it diagnosed?

  • difficult due to non-specific symptoms, no rash, leukopenia (low leukocyte count)
• How can it be prevented?

  • avoiding ticks
• How is it treated?

  • doxycycline