Toxoplasma gondii antibodies in tropical seabirds from the Rocas Atoll Biological Reserve, Brazil

Toxoplasma gondii is a coccidian that infects almost all warm-blooded animals, including birds. Rocas Atoll Biological Reserve, located in the northeast of Brazil, is the only atoll in the South Atlantic, and home to the largest population of seabirds in the western Atlantic. In this study the occur...

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Bibliographic Details
Published in:Revista brasileira de parasitologia veterinaria 2024, Vol.33 (4), p.e009924
Main Authors: Mariani, Daniela Bueno, Gennari, Solange Maria, Soares, Herbert Sousa, Hurtado, Renata, Galizia, Veridiana Caso, Silva, Maurizélia de Brito, Macedo, Eduardo Cavalcante de, Dias, Ricardo Augusto, Silva, Jean Carlos Ramos
Format: Article
Language:English
Subjects:
Animals
Antibodies, Protozoan - blood
Bird Diseases - immunology
Bird Diseases - parasitology
Birds - parasitology
Brazil
Marine environment
PARASITOLOGY
seabirds
Short Communication
Toxoplasma - immunology
toxoplasmosis
Toxoplasmosis, Animal - diagnosis
Toxoplasmosis, Animal - epidemiology
Toxoplasmosis, Animal - immunology
VETERINARY SCIENCES
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Summary:Toxoplasma gondii is a coccidian that infects almost all warm-blooded animals, including birds. Rocas Atoll Biological Reserve, located in the northeast of Brazil, is the only atoll in the South Atlantic, and home to the largest population of seabirds in the western Atlantic. In this study the occurrence of T. gondii antibodies in seabirds from Rocas Atoll were determined. Birds were manually captured, blood samples were taken, and antibodies detected by the modified agglutination test (>5). In total, 267 birds of seven species belonging to three families (Sternidae, Fregatidae and Sulidae) and two orders (Charadriiformes and Suliformes) were sampled. Out of the 267 samples, 20 (7.3%) were seropositive: nine out of 48 brown noddies (Anous stolidus), one out of 26 black noddies (Anous minutus), three out of 20 magnificent frigatebirds (Fregata magnificens), five out of 95 sooty terns (Onychoprion fuscatus) and two out of 20 red-footed boobies (Sula sula). None of the 33 masked boobies (Sula dactylatra) and the 25 brown boobies (Sula leucogaster) were seropositive. The antibody titers were 5 (n=6), 10 (n=4), 20 (n=3), 40 (n=6) and 160 (n=1). Due to the uniqueness of this environment, monitoring the seabirds is suggested to maintaining this Conservation Unit.
ISSN:0103-846X
1984-2961
1984-2961
DOI:10.1590/s1984-29612024052