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Tytuł pozycji:

Carriage of Leptospira interrogans among domestic rats from an urban setting highly endemic for leptospirosis in Brazil.

Tytuł:
Carriage of Leptospira interrogans among domestic rats from an urban setting highly endemic for leptospirosis in Brazil.
Autorzy:
de Faria MT; Gonçalo Moniz Research Centre, Oswaldo Cruz Foundation, Ministry of Health, Salvador, Brazil. />Calderwood MS
Athanazio DA
McBride AJ
Hartskeerl RA
Pereira MM
Ko AI
Reis MG
Źródło:
Acta tropica [Acta Trop] 2008 Oct; Vol. 108 (1), pp. 1-5. Date of Electronic Publication: 2008 Jul 31.
Typ publikacji:
Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't
Język:
English
Imprint Name(s):
Publication: Amsterdam : Elsevier
Original Publication: Basel.
MeSH Terms:
Disease Reservoirs*
Carrier State/*veterinary
Leptospira interrogans/*isolation & purification
Leptospirosis/*veterinary
Rats/*microbiology
Agglutination Tests ; Animals ; Bacterial Typing Techniques ; Blood/microbiology ; Brazil ; Carrier State/epidemiology ; Carrier State/microbiology ; Didelphis/microbiology ; Kidney/microbiology ; Leptospira interrogans/classification ; Leptospirosis/epidemiology ; Leptospirosis/transmission ; Serotyping ; Urban Health ; Urine/microbiology
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Grant Information:
D43 TW000919 United States TW FIC NIH HHS; D43 TW000919-07 United States TW FIC NIH HHS; D43 TW00919 United States TW FIC NIH HHS; R01 AI052473 United States AI NIAID NIH HHS; R01 AI052473-05 United States AI NIAID NIH HHS
Entry Date(s):
Date Created: 20080830 Date Completed: 20081211 Latest Revision: 20220409
Update Code:
20240104
PubMed Central ID:
PMC2596941
DOI:
10.1016/j.actatropica.2008.07.005
PMID:
18721789
Czasopismo naukowe
A survey was conducted to identify reservoirs for urban leptospirosis in the city of Salvador, Brazil. Sampling protocols were performed in the vicinity of households of severe leptospirosis cases identified during active hospital-based surveillance. Among a total of 142 captured Rattus norvegicus (Norwegian brown rat), 80.3% had a positive culture isolate from urine or kidney specimens and 68.1% had a positive serum sample by microscopic agglutination test (MAT) titre of > or = 1:100. Monoclonal antibody-based typing of isolates identified that the agent carried by rats was Leptospira interrogans serovar Copenhageni, which was the same serovar isolated from patients during hospital-based surveillance. Leptospira spp. were not isolated from 8 captured Didelphis marsupialis (Opossum), while 5/7 had a positive MAT titre against a saprophytic serogroup. R. rattus were not captured during the survey. The study findings indicate that the brown rat is a major rodent reservoir for leptospirosis in this urban setting. Furthermore, the high carriage rates of L. interrogans serovar Copenhageni in captured rats suggest that there is a significant degree of environmental contamination with this agent in the household environment of high risk areas, which in turn is a cause of transmission during urban epidemics.

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