Simian malaria in Brazil

In Brazil simian malaria is widely spread, being frequent in the Amazon region (10% of primates infected) and even more in the forested coastal mountains of the Southeastern and Southern regions (35% and 18% infected, respectively), but absent in the semi-arid Northeast. Only two species of plasmoid...

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Main Author: Leonidas M. Deane
Format: Article
Language:English
Published: Fundação Oswaldo Cruz (FIOCRUZ) 1992-01-01
Series:Memorias do Instituto Oswaldo Cruz
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761992000700001
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author Leonidas M. Deane
author_facet Leonidas M. Deane
author_sort Leonidas M. Deane
collection DOAJ
description In Brazil simian malaria is widely spread, being frequent in the Amazon region (10% of primates infected) and even more in the forested coastal mountains of the Southeastern and Southern regions (35% and 18% infected, respectively), but absent in the semi-arid Northeast. Only two species of plasmoidia have been found: the quartan-like Plasmodium brasilianum and the tertian-like P. simium, but the possible presence of other species is not excluded. P. brasilianum is found in all enzootic foci, but P. simium was detected only on the coast of the Southeastern and Southern regions, between parallels 20-S and 30-S. Nearly all hosts are monkeys (family Cebidae, 28 species harbouring plasmodia out of 46 examined) and very rarely marmosets or tamarins (family Callitrichidae, I especies out of 16). P. brasilianum was present in all infected species, P. simium in only two. The natural vector in the Southeastern and Southern regions was found to be Anopheles cruzi, but has not been conclusively identified in the Amazon. One natural, accidental human infection due to P. simium was observed. There is no evidence of the relation of the simian to human malaria in the Southeastern and Southern regions, where human malaria was eradicated in spite of the high rates of monkeys infected, but in the Amazon recent serological studies by other workers, revealing high positivity for P. brasilianum/P. malariae antibodies in local indians, would suggest that among them malaria might be regarded as a zoonosis.
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spelling doaj.art-be5538c8e52640258b9be64997b22bef2023-09-02T13:54:14ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80601992-01-018712010.1590/S0074-02761992000700001Simian malaria in BrazilLeonidas M. DeaneIn Brazil simian malaria is widely spread, being frequent in the Amazon region (10% of primates infected) and even more in the forested coastal mountains of the Southeastern and Southern regions (35% and 18% infected, respectively), but absent in the semi-arid Northeast. Only two species of plasmoidia have been found: the quartan-like Plasmodium brasilianum and the tertian-like P. simium, but the possible presence of other species is not excluded. P. brasilianum is found in all enzootic foci, but P. simium was detected only on the coast of the Southeastern and Southern regions, between parallels 20-S and 30-S. Nearly all hosts are monkeys (family Cebidae, 28 species harbouring plasmodia out of 46 examined) and very rarely marmosets or tamarins (family Callitrichidae, I especies out of 16). P. brasilianum was present in all infected species, P. simium in only two. The natural vector in the Southeastern and Southern regions was found to be Anopheles cruzi, but has not been conclusively identified in the Amazon. One natural, accidental human infection due to P. simium was observed. There is no evidence of the relation of the simian to human malaria in the Southeastern and Southern regions, where human malaria was eradicated in spite of the high rates of monkeys infected, but in the Amazon recent serological studies by other workers, revealing high positivity for P. brasilianum/P. malariae antibodies in local indians, would suggest that among them malaria might be regarded as a zoonosis.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761992000700001Simian malariaBrazil
spellingShingle Leonidas M. Deane
Simian malaria in Brazil
Memorias do Instituto Oswaldo Cruz
Simian malaria
Brazil
title Simian malaria in Brazil
title_full Simian malaria in Brazil
title_fullStr Simian malaria in Brazil
title_full_unstemmed Simian malaria in Brazil
title_short Simian malaria in Brazil
title_sort simian malaria in brazil
topic Simian malaria
Brazil
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761992000700001
work_keys_str_mv AT leonidasmdeane simianmalariainbrazil