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The role of free-ranging, captive, and domestic birds of Western Poland in environmental contamination with Cryptosporidium parvum oocysts and Giardia lamblia cysts
Ist Teil von
Parasitology research (1987), 2009-04, Vol.104 (5), p.1093-1099
Ort / Verlag
Berlin/Heidelberg: Springer-Verlag
Erscheinungsjahr
2009
Link zum Volltext
Quelle
SpringerLink (Online service)
Beschreibungen/Notizen
As
Cryptosporidium parvum
and
Giardia lamblia
can be disseminated in the environment by avian hosts, a total of 499 fecal dropping from 308 free-ranging, 90 captive, and 101 domestic birds were tested by conventional, immunological, and molecular techniques for these human enteropathogens. Twenty-six (5.2%) tested positive for
G. lamblia
cysts and 19 (3.8%) for
C. parvum
oocysts. A bird total of 23 (7.5%) free-ranging, two (2.2%) captive, and one (0.1%) domestic tested positive for cysts, whereas 18 (5.8%) free-ranging, one (1.1%) captive, and zero livestock birds tested positive for oocysts.
G. lamblia
cysts and
C. parvum
oocysts were found significantly more frequently in fecal droppings of free-ranging aquatic birds than in birds not normally associated with water. No specimen tested positive for both pathogens simultaneously. Aquatic birds represent an important epidemiologic link in water-associated transmission cycles of
Cryptosporidium
and
Giardia
and play a significant role in environmental contamination of aquatic habitats with these anthropozoonotic pathogens.