Serological survey of infections in waterfowl in the Guadalquivir Marshes (Spain).
A serological survey was performed in the Guadalquivir Marshes (southern Spain) to determine the presence and diffusion of 6 infective agents in wild waterfowl. The analysis covered 712 waterfowl from 13 species belonging to 5 taxa (Podicipediformes, Ciconiiformes, Anseriformes, Gruiformes, and Charadriiformes). A range of immunological techniques led to detection of antibodies against the 6 infective agents studied; Chlamydia psittaci (13.3%), Mycoplasma anatis (3.5%), Pasteurella anatipestifer (2.9%), duck plague virus (1.6%), Aspergillus fumigatus (1.1%), and Newcastle disease virus (NDV) (0.2%). The survey results indicated that these infective agents exist and circulate among wild waterfowl in these marshes.