Molecular Detection and Characterization of Mycoplasma spp. in Marine Mammals, Brazil
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Duarte-Benvenuto, Aricia
Sacristán, Carlos
Ewbank, Ana Carolina
Zamana-Ramblas, Roberta
Lial, Henrique Christino
Silva, Samira Costa
Lugo, Maria Alejandra Arias
Keid, Lara B.
Pessi, Caroline F.
Sabbadini, José Rubens
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Centers for Disease Control and Prevention (CDC)
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Mycoplasma spp. are wall-less bacteria able to infect mammals and are classified as hemotropic (hemoplasma) and nonhemotropic. In aquatic mammals, hemoplasma have been reported in California sea lions (Zalophus californianus) and river dolphins (Inia spp.). We investigated Mycoplasma spp. in blood samples of West Indian manatees (Trichechus manatus), pinnipeds (5 species), and marine cetaceans (18 species) that stranded or were undergoing rehabilitation in Brazil during 2002–2022. We detected Mycoplasma in blood of 18/130 (14.8%) cetaceans and 3/18 (16.6%) pinnipeds. All tested manatees were PCR-negative for Mycoplasma. Our findings indicate that >2 different hemoplasma species are circulating in cetaceans. The sequences from pinnipeds were similar to previously described sequences. We also detected a nonhemotropic Mycoplasma in 2 Franciscana dolphins (Pontoporia blainvillei) that might be associated with microscopic lesions. Because certain hemoplasmas can cause disease and death in immunosuppressed mammals, the bacteria could have conservation implications for already endangered aquatic mammals.
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Emerging Infectious Diseases, v. 29, n. 12, p. 2471-2481, 2023.
