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===Feline infectious anaemia===
 
===Feline infectious anaemia===
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*Caused by ''Haemobartonella felis''
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*Organism found on surface of erythrocytes
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*Common in roaming tom-cats of 1-3 years old
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*Possibly transmitted via bite wounds or arthropods
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*Recoverd cats become carriers
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*Clinical signs
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**Peracute disease is associated with severe anaemia and immunosuppression, and can be rapidly fatal
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**Fever, anaemia, depression, weakness and jaundice occur in the acute form
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**Anaemia, lethargy and weight loss occur in the chronic form
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**Recovery can occur with a regenerative bone marrow response
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**Severe feline infectious anaemia may occur in the presence of feline leukaemia virus
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*Diagnosis
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**Organism intermittently seen on the surface of red blood cells in Giemsa-stained blood smears
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**Immunofluorescence of blood smears
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**Reduced packed cell volume; regenerative anaemia
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*Treatment
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**Doxycycline for 3 weeks early in the course of the disease
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**Blood transfusion
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**Flea control
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===Canine haemobartonellosis===
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*Dogs infected with ''Haemobartonella canis'' usually asymptomatic
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*Acute haemolytic anaemia may occur in dogs after splenectomy, immunosuppressive drug therapy or immunosuppressive infections
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===Q fever===
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*Caused by ''Coxiella burnetti''
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*Influenza-like disease of humans in contact with farm animals
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*Transmitted to humans by inhalation from parturient sheep, goats and cattle
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*Organisms replicate in female genital tract and mammary glands of ruminants
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*Shedding occurs in uterine discharges, foetal fluid and milk
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*Infections in animals usually subclinical
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*Sporadic abortions occur in sheep, goats, cattle, cats
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*Infertility may result in ruminants, as well as placentitis or endometritis
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*Hepatitis, myocarditis and interstitial pneumonia may occur in affected foetuses
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*Diagnosis: MZN-stained smears of placental tissue and uterine discharges; immunofluorescence; PCR; culture; serology
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*Control: disposal of infected placenta and separation of pregnant ruminants; inactivated vaccines
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