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Molecular epidemiology of adenovirus acute lower respiratory infections of children in the South Cone of South America (1991–1994)

✍ Scribed by Kajon, Adriana E.; Mistchenko, Alicia S.; Videla, Cristina; Hortal, Maria; Wadell, Göran; Avendaño, Luis F.

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
552 KB
Volume
48
Category
Article
ISSN
0146-6615

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✦ Synopsis

A collection of 165 adenovirus strains isolated from nasopharyngeal aspirates of children hospitalized for acute lower respiratory infection in Argentina, Chile, and Uruguay between 1991 and 1994 was studied by restriction enzyme analysis (work performed in the Department of Virology, University of Umeii). Of the isolates, 71% (n = 117) were identified as members of subgenus B. Of these, 101 (61.2%) corresponded to genome type 7h, four (2.4%) to genome type 3p2, four (2.4%) to genome type 1 1 a, one (0.6%) to genome type 7b, and one (0.6%) to genome type 7c. Two isolates that were neutralized as serotype 3 and four isolates that were neutralized as serotype 7 exhibited novel BamHl cleavage profiles corresponding to three new genome types denominated 3x, 7i, and 7j.

Subgenus C members represented 28.5% of all typed isolates. Five different genome types of Adl, seven genome types of Ad2, and three genome types of Ad5 were identified of, which two, two, and one, respectively, were found to correspond to new DNA variants. Only one isolate (0.6%) corresponded to Ad4 of subgenus E. Ad7h was isolated from 17 of the 18 fatal cases recorded among the patients included in the study.

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