Comparative growth of spotted fever group Rickettsia spp. strains in Vero cells

In Brazil, the spotted fever group (SFG) Rickettsia rickettsii and Rickettsia parkeri related species are the etiological agents of spotted fever rickettsiosis. However, the SFG, Rickettsia rhipicephali, that infects humans, has never been reported. The study of growth dynamics can be useful for und...

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Published inMemórias do Instituto Oswaldo Cruz Vol. 111; no. 8; pp. 528 - 531
Main Authors Silva, Arannadia Barbosa, Duarte, Myrian Morato, Vizzoni, Vinicius Figueiredo, Duré, Ana Íris de Lima, Lopéz, Diego Montenegro, Nogueira, Rita de Maria Seabra, Soares, Carlos Augusto Gomes, Machado-Ferreira, Erik, Gazêta, Gilberto Salles
Format Journal Article
LanguageEnglish
Published Brazil Instituto Oswaldo Cruz, Ministério da Saúde 01.08.2016
Fundação Oswaldo Cruz (FIOCRUZ)
Subjects
Animals
Cercopithecus aethiops
growth kinetics
PARASITOLOGY
Rickettsia - classification
Rickettsia - growth & development
rickettsial biology
Short Communication
Species Specificity
tick-borne disease
Time Factors
TROPICAL MEDICINE
Vero Cells
growth kinetics
rickettsial biology
tick-borne disease
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Summary:In Brazil, the spotted fever group (SFG) Rickettsia rickettsii and Rickettsia parkeri related species are the etiological agents of spotted fever rickettsiosis. However, the SFG, Rickettsia rhipicephali, that infects humans, has never been reported. The study of growth dynamics can be useful for understanding the infective and invasive capacity of these pathogens. Here, the growth rates of the Brazilian isolates R. rickettsii str. Taiaçu, R. parkeri str. At#24, and R. rhipicephali HJ#5, were evaluated in Vero cells by quantitative polymerase chain reaction. R. rhipicephali showed different kinetic growth compared to R. rickettsii and R. parkeri.
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EM-F and GSG contributed equally to this work.
ISSN:0074-0276
1678-8060
1678-8060
0074-0276
DOI:10.1590/0074-02760160093