Hemoplasmas, the erythrocyte-associated mycoplasmas, have been detected in several primates, causing mostly subclinical infection. This study aimed to determine the prevalence of hemoplasma infection in captive and free-ranging monkeys from southern Brazil, as well as factors and hematological abnormalities associated with infection. Blood samples from 40 non-human primates (NHP) were tested for hemoplasmas and coinfections. An overall of 10/40 (25.0%) NHP tested positive for hemoplasmas using PCR-based assays, including 9/14 (64.3%) black howler monkeys (Alouatta caraya) and 1/24 (4.2%) black-horned capuchin (Sapajus nigritus). Infection was not statistically associated with anemia, but wild-born monkeys and male black howler monkeys were more likely to be positive when compared with captive-born animals and female black howler monkeys, respectively. The sequences from the black howler monkey hemoplasma were similar (94% identity) to the squirrel monkey hemoplasma ("Candidatus Mycoplasma kahanei") and were phylogenetically located in a different cluster when compared to the human hemoplasma ("Candidatus Mycoplasma haemohominis").
Keywords: Hemoplasma; Monkey; Vector-borne disease; Wild mammal.
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