DM2 Pt2-2 Feline Haemoplasma Flashcards
What was Mycoplasma haemofelis (Mhf) previously known as?
It was previously known as Haemobartonella felis.
What factors suggest that Mycoplasma haemofelis may be transmitted horizontally between cats?
Increased incidence in male cats, cat bite abscesses, and outdoor roaming suggest transmission via fighting.
What role does the cat flea (Ctenocephalides felis) play in haemoplasma transmission?
C. felis has been implicated in the transmission of haemoplasma species through haematophagous activity.
What are the three haemoplasma species that infect cats?
Mycoplasma haemofelis (Mhf), Candidatus Mycoplasma haemominutum (CMhm), and Candidatus Mycoplasma turicensis (CMt).
Which haemoplasma species is the most abundant worldwide?
Candidatus Mycoplasma haemominutum (CMhm) is the most abundant worldwide.
Which haemoplasma species is most likely to cause disease in cats?
Mycoplasma haemofelis (Mhf) is the species most likely to cause disease in cats.
How do haemoplasmas induce anaemia in cats?
Haemoplasmas induce anaemia by causing haemolysis and sequestration of red blood cells.
What is indicated by positive Coombs’ tests and autoagglutination in acute haemoplasmosis cases?
These findings indicate the presence of erythrocyte-bound antibodies in the cat’s blood.
Can cats become chronically infected with haemoplasmas?
Yes, cats can remain chronically infected and reactivation may occur, though clinical disease reactivation is rare.
What is a possible consequence of haemoplasma infection in cats?
Anaemia may occur, but some cats may be infected without showing clinical signs.
What factors influence the clinical signs of haemoplasma infection?
Factors include the haemoplasma species, infection stage, primary or secondary infection, and the speed and severity of anaemia development.
What are common clinical signs of haemoplasma infection in ill cats?
Pallor, anorexia, lethargy, dehydration, weight loss, depression, intermittent pyrexia, and splenomegaly.
What uncommon clinical sign may occur with haemoplasma infection?
Icterus (jaundice) is uncommon.
What is the preferred diagnostic method for haemoplasma infection?
Polymerase chain reaction (PCR) assay is the diagnostic method of choice for haemoplasma infection.
Why is blood smear analysis no longer recommended for diagnosing haemoplasma infection?
Blood smears have poor sensitivity and specificity for haemoplasma detection.
