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Q Fever

Most herds and flocks in the USA are infected with Coxiella burnetii, the bacterium that causes Q fever.

  • While there is a low risk of exposure from healthy cattle, sheep or goats, the highest risk of exposure to Q fever is from placental membranes, birthing fluids, and fetuses from infected sheep, goats, and cattle.
    • The bacteria can become airborne, particularly during births and cleaning of birthing areas.
  • In most individuals, the disease manifests itself as a flu-like illness that resolves in 10-14 days.
  • Women of child-bearing age or who are pregnant should be aware that this bacterium may cause miscarriage or other problems with the human fetus.
  • Employees should report occupational exposure to their physician if clinical signs of illness are noted.
  • Rarely, a person may develop a chronic infection with the Q fever organism. This can cause endocarditis - an infection on the valves of the heart that can be fatal.
  • Individuals with the following conditions should be advised of the risk of serious illness that may result from Q fever and should be discouraged from working with sheep, cattle, and goats at the time of parturition.
    • Congenital heart disease
    • Prior valvular heart disease
    • Chronically compromised or impaired immune system
    • Pregnancy

Quarantine Animal

Animals with disease or unknown health status.

Quarantine In situ (QIS)

Special exemption from campus-wide fur mite treatment; animals remain housed in their fixed locations through campus-wide fur mite treatment and are subjected to specific testing requirements to prevent re-infestation of campus. Details are provided below. 

Table 1: Fur Mite Species Differences

   Fur Mite Species   

   Life Cycle   


   Species Infected   

   Myocoptes musculinus   

   14 days   

   3rd and 4th legs heavily chitinized;   
   Eggs occupy ½ of abdomen   


   Myobia musculi   

   21-23 days   

   Single claw on 2nd digit   

   Mice and Rat   

   Radfordia affinis   

   Similar M. musculi   

   Two claws on 2nd digit (unequal length)   

   Mice and Rat   

   Radfordia ensifera   

   Similar M. musculi   

   Two claws on 2nd digit (equal length)   


Table 2: Treatment Summary

   Treatment Drug   



   Cage Labeling   

   Ivermectin Chow   

   12ppm ad lib   

   Continuously for 8 weeks   


   Ivermectin Water   

   12ppm ad lib   
   0.28cc / 8oz of water   
   1.2cc / L of water   

   Continuously for 8 weeks   

   Yellow acetate with green label   
   indicating ivermectin water   

   Moxidectin (topical)   

   Mouse - 3Dl   
   Rat - 10Dl   

   Application on days 1 and 10   

   Yellow acetate with green label   
   for recording 2 treatment dates   


   Cotton balls per animal:   
   Mouse - 2   
   Rat - 5   

   8 weeks with weekly change   

   Yellow acetate with green label   
   for recording 8 placement dates   


  • Quarter 1 (Q1) = January – March
  • Quarter 2 (Q2) = April – June
  • Quarter 3 (Q3) = July – September
  • Quarter 4 (Q4) = October – December