Serological identification of Rickettsia spp from the spotted fever group in capybaras in the region of Campinas-SP-Brazil

被引:10
作者
de Souza, Celso Eduardo [1 ]
Lacerra de Souza, Savina Silvana [1 ]
Castor Lima, Virgilia Luna [1 ]
Calic, Simone Berger [2 ]
Gibrail Oliveira Camargo, Maria Cecilia [3 ]
Martin Mouriz Savani, Elisa San [3 ]
Nicoletti D'Auria, Sandra Regina [3 ]
Linhares, Aricio Xavier [4 ]
Yoshinari, Natalino Hajime [5 ]
机构
[1] Superintendencia Controle Endemias SUCEN, Lab Carrapatos, Mogi Guacu, SP, Brazil
[2] Secretaria Estadual Saude Minas Gerais, Fundacao Ezequiel Dias, Lab Biosseguranca, Belo Horizonte, MG, Brazil
[3] Secretaria Municipal Saude Sao Paulo, Lab Zoonoses & Doencas Transmitidas Vetores, Sao Paulo, Brazil
[4] Univ Estadual Campinas, Inst Biol, Dept Parasitol, BR-13081970 Campinas, SP, Brazil
[5] Univ Sao Paulo, Fac Med, Lab Doenca Lyme Simile, Sao Paulo, Brazil
来源
CIENCIA RURAL | 2008年 / 38卷 / 06期
关键词
Rickettsia; Amblyomma; hydrochoerus hyrdrochaeris; capybara; Spotted Fever;
D O I
10.1590/S0103-84782008000600031
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Diseases transmitted by ticks have been an important health problem all over the world. Brazilian Spotted Fever (BSF) stands for a serious epidemiological concern due to the high mortality rates pointed out. Capybaras are commonly incriminated as possible reservoirs in the BSF transmission cycle. In the last decades the numbers of these animals raised sharply and they have invaded human areas. They intensify the contact between ticks and humans beings. This study aim is to contribute to the possible role performed for this rodent in the BSF epidemiology in some areas located in Campinas region. Sao paulo. Cabybaras infected by rickettsiae of BSF group were studied through the analysis of the frequencies of BSF-group rickettsiae antibodies titer = 64 buy indirect immunofluorescence test (IFA), and data from human cases epidemiological surveillance. The serum frequency positiveness varied greatly according to areas where animals were captured. However it was found serum positiveness only in the areas where human cases of BSF were reported. These findings suggest the capybara may be seen as sentinel animal. Due to presence of serological cross reactivity between microorganisms belonging to SF group, the results must be interpreted carefully and additional methods to distinguish pathogenic rickettsiae are required in our country.
引用
收藏
页码:1694 / 1699
页数:6
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