Leptospira interrogans biofilm formation in Rattus norvegicus (Norway rats) natural reservoirs.
PLoS Negl Trop Dis
; 15(9): e0009736, 2021 09.
Article
em En
| MEDLINE
| ID: mdl-34495971
ABSTRACT
Rattus norvegicus (Norway rat) is the main reservoir host of pathogenic Leptospira, the causative agent of leptospirosis, in urban environments. Pathogenic Leptospira forms biofilms in the environment, possibly contributing for bacterial survival and maintenance. Nonetheless, biofilms have not yet been studied in natural animal reservoirs presenting leptospiral renal carriage. Here, we described biofilm formation by pathogenic Leptospira inside the renal tubules of R. norvegicus naturally infected and captured in an urban slum endemic for leptospirosis. From the 65 rats carrying Leptospira in their kidneys, 24 (37%) presented biofilms inside the renal tubules. The intensity of leptospiral colonization in the renal tubules (OR 1.00; 95% CI 1.05-1.1) and the type of occlusion pattern of the colonized renal tubules (OR 3.46; 95% CI 1.20-9.98) were independently associated with the presence of Leptospira biofilm. Our data showed that Leptospira interrogans produce biofilms during renal chronic colonization in rat reservoirs, suggesting a possible role for leptospiral biofilms in the pathogenesis of leptospirosis and bacterial carriage in host reservoirs.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doenças dos Roedores
/
Reservatórios de Doenças
/
Biofilmes
/
Leptospira interrogans
/
Leptospirose
Limite:
Animals
Idioma:
En
Revista:
PLoS Negl Trop Dis
Assunto da revista:
MEDICINA TROPICAL
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Brasil