impaginato piccolo - Società Italiana di Parassitologia (SoIPa)

74
R. Galuppi, M.P. Tampieri - Malassezia: Epidemiology - variability
ed for the first time Malassezia sympodialis, a lipid
dependent species, in cats. Subsequently other studies
detected M. furfur and M. globosa on skin, mucous and
external ear canal of healthy cats (Bond et al, 1997;
Crespo et al, 1999; Corazza et al, 2001). M. nana was
described in cats and in bovines (Hirai et al, 2004). M.
pachydermatis, M. obtusa M. globosa, M. sloffiae, M.
furfur and M. sympodialis were found in cattle as well
(Duarte et al, 1999). M. pachydermatis (Didier, 2004)
and M. sloffiae (Guillot et al, 1998; Uzal et al, 2007)
were found in goats and recently a new lipid dependent
species, M. caprae was also described (Cabañes et al.,
2007). In swine M. sloffiae was mainly described
(Guého et al, 1996; Matousek and Campbell, 2002).
We reported the isolation of M. sloffiae associated to
M. sympodialis from skin and external ear canal in
healthy pigs (Galuppi et al, 2004). M. sympodialis
(Senczek et al, 1999; Matousek e Campbell, 2002) and
recently M. equina (Cabañes et al, 2007) were
described in horse. M. equi, a new strain reported by
Nell et al, (2002), is not recognized by various Authors
because it is not reported a valid description or a type
specimen. Lipid dependent species are commonly present
on human skin, but also M. pachydermatis was
found and the event of neonatal septicaemia in an
intensive care unit (Marcon and Powell, 1992) is worthy
to be mentioned. The infection was correlated to a
carrier role played by the nurses and their own dog
(Chang et al, 1998). This give rise to great interest
about the zoonotic potential of the yeast, but until now,
none extensive study concerning this question was carried
out. M. pachydermatis, despite the isolation of
lipid dependent species, is certainly the prevalent strain
in dogs. Bonoli et al (2004) found this species more frequently
(59.73%) than the lipid dependent species
(4.03%) (χ 2 106.45; p